Mercurial > cpython-lru_cache-weakref

annotate Lib/argparse.py @ 81343:3a7cd8efc19f

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
#16852: merge with 3.3.
author Ezio Melotti <ezio.melotti@gmail.com>
date Thu, 10 Jan 2013 03:29:45 +0200
parents 7d69d04522e3
children cb876235f29d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
59987
cac661db7795 Merged revisions 79385 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59282
diff changeset
1 # Author: Steven J. Bethard <steven.bethard@gmail.com>.
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
3 """Command-line parsing library
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
4
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
5 This module is an optparse-inspired command-line parsing library that:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
6
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
7 - handles both optional and positional arguments
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
8 - produces highly informative usage messages
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
9 - supports parsers that dispatch to sub-parsers
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
10
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
11 The following is a simple usage example that sums integers from the
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
12 command-line and writes the result to a file::
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
13
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
14 parser = argparse.ArgumentParser(
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
15 description='sum the integers at the command line')
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
16 parser.add_argument(
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
17 'integers', metavar='int', nargs='+', type=int,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
18 help='an integer to be summed')
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
19 parser.add_argument(
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
20 '--log', default=sys.stdout, type=argparse.FileType('w'),
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
21 help='the file where the sum should be written')
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
22 args = parser.parse_args()
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
23 args.log.write('%s' % sum(args.integers))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
24 args.log.close()
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
25
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
26 The module contains the following public classes:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
27
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
28 - ArgumentParser -- The main entry point for command-line parsing. As the
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
29 example above shows, the add_argument() method is used to populate
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
30 the parser with actions for optional and positional arguments. Then
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
31 the parse_args() method is invoked to convert the args at the
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
32 command-line into an object with attributes.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
33
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
34 - ArgumentError -- The exception raised by ArgumentParser objects when
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
35 there are errors with the parser's actions. Errors raised while
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
36 parsing the command-line are caught by ArgumentParser and emitted
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
37 as command-line messages.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
38
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
39 - FileType -- A factory for defining types of files to be created. As the
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
40 example above shows, instances of FileType are typically passed as
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
41 the type= argument of add_argument() calls.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
42
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
43 - Action -- The base class for parser actions. Typically actions are
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
44 selected by passing strings like 'store_true' or 'append_const' to
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
45 the action= argument of add_argument(). However, for greater
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
46 customization of ArgumentParser actions, subclasses of Action may
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
47 be defined and passed as the action= argument.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
48
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
49 - HelpFormatter, RawDescriptionHelpFormatter, RawTextHelpFormatter,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
50 ArgumentDefaultsHelpFormatter -- Formatter classes which
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
51 may be passed as the formatter_class= argument to the
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
52 ArgumentParser constructor. HelpFormatter is the default,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
53 RawDescriptionHelpFormatter and RawTextHelpFormatter tell the parser
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
54 not to change the formatting for help text, and
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
55 ArgumentDefaultsHelpFormatter adds information about argument defaults
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
56 to the help.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
57
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
58 All other classes in this module are considered implementation details.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
59 (Also note that HelpFormatter and RawDescriptionHelpFormatter are only
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
60 considered public as object names -- the API of the formatter objects is
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
61 still considered an implementation detail.)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
62 """
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
63
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
64 __version__ = '1.1'
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
65 __all__ = [
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
66 'ArgumentParser',
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
67 'ArgumentError',
65863
e71c2e1daf57 Get argparse.__all__ back up to date (issue 9353)
Steven Bethard <steven.bethard@gmail.com>
parents: 63690
diff changeset
68 'ArgumentTypeError',
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
69 'FileType',
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
70 'HelpFormatter',
65863
e71c2e1daf57 Get argparse.__all__ back up to date (issue 9353)
Steven Bethard <steven.bethard@gmail.com>
parents: 63690
diff changeset
71 'ArgumentDefaultsHelpFormatter',
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
72 'RawDescriptionHelpFormatter',
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
73 'RawTextHelpFormatter',
68966
a15d65d8f269 Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
74 'MetavarTypeHelpFormatter',
65863
e71c2e1daf57 Get argparse.__all__ back up to date (issue 9353)
Steven Bethard <steven.bethard@gmail.com>
parents: 63690
diff changeset
75 'Namespace',
e71c2e1daf57 Get argparse.__all__ back up to date (issue 9353)
Steven Bethard <steven.bethard@gmail.com>
parents: 63690
diff changeset
76 'Action',
e71c2e1daf57 Get argparse.__all__ back up to date (issue 9353)
Steven Bethard <steven.bethard@gmail.com>
parents: 63690
diff changeset
77 'ONE_OR_MORE',
e71c2e1daf57 Get argparse.__all__ back up to date (issue 9353)
Steven Bethard <steven.bethard@gmail.com>
parents: 63690
diff changeset
78 'OPTIONAL',
e71c2e1daf57 Get argparse.__all__ back up to date (issue 9353)
Steven Bethard <steven.bethard@gmail.com>
parents: 63690
diff changeset
79 'PARSER',
e71c2e1daf57 Get argparse.__all__ back up to date (issue 9353)
Steven Bethard <steven.bethard@gmail.com>
parents: 63690
diff changeset
80 'REMAINDER',
e71c2e1daf57 Get argparse.__all__ back up to date (issue 9353)
Steven Bethard <steven.bethard@gmail.com>
parents: 63690
diff changeset
81 'SUPPRESS',
e71c2e1daf57 Get argparse.__all__ back up to date (issue 9353)
Steven Bethard <steven.bethard@gmail.com>
parents: 63690
diff changeset
82 'ZERO_OR_MORE',
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
83 ]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
84
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
85
69003
74f9ed48ae5d Issue #9026: Fix order of argparse sub-commands in help messages.
Steven Bethard <steven.bethard@gmail.com>
parents: 68967
diff changeset
86 import collections as _collections
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
87 import copy as _copy
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
88 import os as _os
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
89 import re as _re
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
90 import sys as _sys
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
91 import textwrap as _textwrap
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
92
66721
1827a8ac9b18 Use proper plural forms in argparse (#4391)
Éric Araujo <merwok@netwok.org>
parents: 66661
diff changeset
93 from gettext import gettext as _, ngettext
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
94
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
95
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
96 SUPPRESS = '==SUPPRESS=='
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
97
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
98 OPTIONAL = '?'
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
99 ZERO_OR_MORE = '*'
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
100 ONE_OR_MORE = '+'
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
101 PARSER = 'A...'
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
102 REMAINDER = '...'
65887
ff6f39b3c38e Fix bug 9340 - argparse parse_known_args didn't work with subparsers
Steven Bethard <steven.bethard@gmail.com>
parents: 65869
diff changeset
103 _UNRECOGNIZED_ARGS_ATTR = '_unrecognized_args'
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
104
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
105 # =============================
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
106 # Utility functions and classes
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
107 # =============================
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
108
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
109 class _AttributeHolder(object):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
110 """Abstract base class that provides __repr__.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
111
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
112 The __repr__ method returns a string in the format::
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
113 ClassName(attr=name, attr=name, ...)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
114 The attributes are determined either by a class-level attribute,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
115 '_kwarg_names', or by inspecting the instance __dict__.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
116 """
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
117
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
118 def __repr__(self):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
119 type_name = type(self).__name__
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
120 arg_strings = []
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
121 for arg in self._get_args():
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
122 arg_strings.append(repr(arg))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
123 for name, value in self._get_kwargs():
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
124 arg_strings.append('%s=%r' % (name, value))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
125 return '%s(%s)' % (type_name, ', '.join(arg_strings))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
126
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
127 def _get_kwargs(self):
59282
b30f8ce82167 Merged revisions 78600-78601 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59275
diff changeset
128 return sorted(self.__dict__.items())
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
129
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
130 def _get_args(self):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
131 return []
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
132
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
133
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
134 def _ensure_value(namespace, name, value):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
135 if getattr(namespace, name, None) is None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
136 setattr(namespace, name, value)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
137 return getattr(namespace, name)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
138
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
139
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
140 # ===============
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
141 # Formatting Help
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
142 # ===============
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
143
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
144 class HelpFormatter(object):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
145 """Formatter for generating usage messages and argument help strings.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
146
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
147 Only the name of this class is considered a public API. All the methods
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
148 provided by the class are considered an implementation detail.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
149 """
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
150
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
151 def __init__(self,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
152 prog,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
153 indent_increment=2,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
154 max_help_position=24,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
155 width=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
156
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
157 # default setting for width
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
158 if width is None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
159 try:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
160 width = int(_os.environ['COLUMNS'])
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
161 except (KeyError, ValueError):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
162 width = 80
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
163 width -= 2
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
164
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
165 self._prog = prog
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
166 self._indent_increment = indent_increment
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
167 self._max_help_position = max_help_position
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
168 self._width = width
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
169
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
170 self._current_indent = 0
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
171 self._level = 0
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
172 self._action_max_length = 0
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
173
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
174 self._root_section = self._Section(self, None)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
175 self._current_section = self._root_section
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
176
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
177 self._whitespace_matcher = _re.compile(r'\s+')
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
178 self._long_break_matcher = _re.compile(r'\n\n\n+')
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
179
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
180 # ===============================
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
181 # Section and indentation methods
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
182 # ===============================
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
183 def _indent(self):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
184 self._current_indent += self._indent_increment
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
185 self._level += 1
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
186
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
187 def _dedent(self):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
188 self._current_indent -= self._indent_increment
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
189 assert self._current_indent >= 0, 'Indent decreased below 0.'
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
190 self._level -= 1
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
191
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
192 class _Section(object):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
193
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
194 def __init__(self, formatter, parent, heading=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
195 self.formatter = formatter
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
196 self.parent = parent
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
197 self.heading = heading
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
198 self.items = []
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
199
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
200 def format_help(self):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
201 # format the indented section
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
202 if self.parent is not None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
203 self.formatter._indent()
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
204 join = self.formatter._join_parts
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
205 for func, args in self.items:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
206 func(*args)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
207 item_help = join([func(*args) for func, args in self.items])
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
208 if self.parent is not None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
209 self.formatter._dedent()
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
210
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
211 # return nothing if the section was empty
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
212 if not item_help:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
213 return ''
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
214
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
215 # add the heading if the section was non-empty
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
216 if self.heading is not SUPPRESS and self.heading is not None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
217 current_indent = self.formatter._current_indent
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
218 heading = '%*s%s:\n' % (current_indent, '', self.heading)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
219 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
220 heading = ''
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
221
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
222 # join the section-initial newline, the heading and the help
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
223 return join(['\n', heading, item_help, '\n'])
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
224
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
225 def _add_item(self, func, args):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
226 self._current_section.items.append((func, args))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
227
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
228 # ========================
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
229 # Message building methods
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
230 # ========================
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
231 def start_section(self, heading):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
232 self._indent()
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
233 section = self._Section(self, self._current_section, heading)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
234 self._add_item(section.format_help, [])
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
235 self._current_section = section
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
236
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
237 def end_section(self):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
238 self._current_section = self._current_section.parent
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
239 self._dedent()
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
240
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
241 def add_text(self, text):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
242 if text is not SUPPRESS and text is not None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
243 self._add_item(self._format_text, [text])
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
244
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
245 def add_usage(self, usage, actions, groups, prefix=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
246 if usage is not SUPPRESS:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
247 args = usage, actions, groups, prefix
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
248 self._add_item(self._format_usage, args)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
249
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
250 def add_argument(self, action):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
251 if action.help is not SUPPRESS:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
252
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
253 # find all invocations
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
254 get_invocation = self._format_action_invocation
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
255 invocations = [get_invocation(action)]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
256 for subaction in self._iter_indented_subactions(action):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
257 invocations.append(get_invocation(subaction))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
258
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
259 # update the maximum item length
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
260 invocation_length = max([len(s) for s in invocations])
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
261 action_length = invocation_length + self._current_indent
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
262 self._action_max_length = max(self._action_max_length,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
263 action_length)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
264
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
265 # add the item to the list
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
266 self._add_item(self._format_action, [action])
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
267
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
268 def add_arguments(self, actions):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
269 for action in actions:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
270 self.add_argument(action)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
271
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
272 # =======================
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
273 # Help-formatting methods
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
274 # =======================
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
275 def format_help(self):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
276 help = self._root_section.format_help()
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
277 if help:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
278 help = self._long_break_matcher.sub('\n\n', help)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
279 help = help.strip('\n') + '\n'
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
280 return help
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
281
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
282 def _join_parts(self, part_strings):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
283 return ''.join([part
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
284 for part in part_strings
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
285 if part and part is not SUPPRESS])
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
286
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
287 def _format_usage(self, usage, actions, groups, prefix):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
288 if prefix is None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
289 prefix = _('usage: ')
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
290
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
291 # if usage is specified, use that
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
292 if usage is not None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
293 usage = usage % dict(prog=self._prog)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
294
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
295 # if no optionals or positionals are available, usage is just prog
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
296 elif usage is None and not actions:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
297 usage = '%(prog)s' % dict(prog=self._prog)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
298
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
299 # if optionals and positionals are available, calculate usage
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
300 elif usage is None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
301 prog = '%(prog)s' % dict(prog=self._prog)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
302
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
303 # split optionals from positionals
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
304 optionals = []
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
305 positionals = []
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
306 for action in actions:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
307 if action.option_strings:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
308 optionals.append(action)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
309 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
310 positionals.append(action)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
311
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
312 # build full usage string
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
313 format = self._format_actions_usage
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
314 action_usage = format(optionals + positionals, groups)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
315 usage = ' '.join([s for s in [prog, action_usage] if s])
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
316
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
317 # wrap the usage parts if it's too long
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
318 text_width = self._width - self._current_indent
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
319 if len(prefix) + len(usage) > text_width:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
320
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
321 # break usage into wrappable parts
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
322 part_regexp = r'\(.*?\)+|\[.*?\]+|\S+'
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
323 opt_usage = format(optionals, groups)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
324 pos_usage = format(positionals, groups)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
325 opt_parts = _re.findall(part_regexp, opt_usage)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
326 pos_parts = _re.findall(part_regexp, pos_usage)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
327 assert ' '.join(opt_parts) == opt_usage
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
328 assert ' '.join(pos_parts) == pos_usage
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
329
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
330 # helper for wrapping lines
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
331 def get_lines(parts, indent, prefix=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
332 lines = []
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
333 line = []
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
334 if prefix is not None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
335 line_len = len(prefix) - 1
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
336 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
337 line_len = len(indent) - 1
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
338 for part in parts:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
339 if line_len + 1 + len(part) > text_width:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
340 lines.append(indent + ' '.join(line))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
341 line = []
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
342 line_len = len(indent) - 1
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
343 line.append(part)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
344 line_len += len(part) + 1
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
345 if line:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
346 lines.append(indent + ' '.join(line))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
347 if prefix is not None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
348 lines[0] = lines[0][len(indent):]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
349 return lines
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
350
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
351 # if prog is short, follow it with optionals or positionals
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
352 if len(prefix) + len(prog) <= 0.75 * text_width:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
353 indent = ' ' * (len(prefix) + len(prog) + 1)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
354 if opt_parts:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
355 lines = get_lines([prog] + opt_parts, indent, prefix)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
356 lines.extend(get_lines(pos_parts, indent))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
357 elif pos_parts:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
358 lines = get_lines([prog] + pos_parts, indent, prefix)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
359 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
360 lines = [prog]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
361
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
362 # if prog is long, put it on its own line
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
363 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
364 indent = ' ' * len(prefix)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
365 parts = opt_parts + pos_parts
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
366 lines = get_lines(parts, indent)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
367 if len(lines) > 1:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
368 lines = []
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
369 lines.extend(get_lines(opt_parts, indent))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
370 lines.extend(get_lines(pos_parts, indent))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
371 lines = [prog] + lines
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
372
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
373 # join lines into usage
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
374 usage = '\n'.join(lines)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
375
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
376 # prefix with 'usage:'
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
377 return '%s%s\n\n' % (prefix, usage)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
378
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
379 def _format_actions_usage(self, actions, groups):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
380 # find group indices and identify actions in groups
59282
b30f8ce82167 Merged revisions 78600-78601 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59275
diff changeset
381 group_actions = set()
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
382 inserts = {}
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
383 for group in groups:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
384 try:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
385 start = actions.index(group._group_actions[0])
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
386 except ValueError:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
387 continue
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
388 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
389 end = start + len(group._group_actions)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
390 if actions[start:end] == group._group_actions:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
391 for action in group._group_actions:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
392 group_actions.add(action)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
393 if not group.required:
65869
d8ab35ec486e Fix for issue 9355 where with multiple mutually exclusive arguments, some brackets were being lost in the usage messages
Steven Bethard <steven.bethard@gmail.com>
parents: 65867
diff changeset
394 if start in inserts:
d8ab35ec486e Fix for issue 9355 where with multiple mutually exclusive arguments, some brackets were being lost in the usage messages
Steven Bethard <steven.bethard@gmail.com>
parents: 65867
diff changeset
395 inserts[start] += ' ['
d8ab35ec486e Fix for issue 9355 where with multiple mutually exclusive arguments, some brackets were being lost in the usage messages
Steven Bethard <steven.bethard@gmail.com>
parents: 65867
diff changeset
396 else:
d8ab35ec486e Fix for issue 9355 where with multiple mutually exclusive arguments, some brackets were being lost in the usage messages
Steven Bethard <steven.bethard@gmail.com>
parents: 65867
diff changeset
397 inserts[start] = '['
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
398 inserts[end] = ']'
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
399 else:
65869
d8ab35ec486e Fix for issue 9355 where with multiple mutually exclusive arguments, some brackets were being lost in the usage messages
Steven Bethard <steven.bethard@gmail.com>
parents: 65867
diff changeset
400 if start in inserts:
d8ab35ec486e Fix for issue 9355 where with multiple mutually exclusive arguments, some brackets were being lost in the usage messages
Steven Bethard <steven.bethard@gmail.com>
parents: 65867
diff changeset
401 inserts[start] += ' ('
d8ab35ec486e Fix for issue 9355 where with multiple mutually exclusive arguments, some brackets were being lost in the usage messages
Steven Bethard <steven.bethard@gmail.com>
parents: 65867
diff changeset
402 else:
d8ab35ec486e Fix for issue 9355 where with multiple mutually exclusive arguments, some brackets were being lost in the usage messages
Steven Bethard <steven.bethard@gmail.com>
parents: 65867
diff changeset
403 inserts[start] = '('
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
404 inserts[end] = ')'
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
405 for i in range(start + 1, end):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
406 inserts[i] = '|'
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
407
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
408 # collect all actions format strings
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
409 parts = []
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
410 for i, action in enumerate(actions):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
411
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
412 # suppressed arguments are marked with None
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
413 # remove | separators for suppressed arguments
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
414 if action.help is SUPPRESS:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
415 parts.append(None)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
416 if inserts.get(i) == '|':
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
417 inserts.pop(i)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
418 elif inserts.get(i + 1) == '|':
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
419 inserts.pop(i + 1)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
420
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
421 # produce all arg strings
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
422 elif not action.option_strings:
68966
a15d65d8f269 Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
423 default = self._get_default_metavar_for_positional(action)
a15d65d8f269 Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
424 part = self._format_args(action, default)
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
425
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
426 # if it's in a group, strip the outer []
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
427 if action in group_actions:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
428 if part[0] == '[' and part[-1] == ']':
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
429 part = part[1:-1]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
430
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
431 # add the action string to the list
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
432 parts.append(part)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
433
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
434 # produce the first way to invoke the option in brackets
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
435 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
436 option_string = action.option_strings[0]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
437
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
438 # if the Optional doesn't take a value, format is:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
439 # -s or --long
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
440 if action.nargs == 0:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
441 part = '%s' % option_string
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
442
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
443 # if the Optional takes a value, format is:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
444 # -s ARGS or --long ARGS
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
445 else:
68966
a15d65d8f269 Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
446 default = self._get_default_metavar_for_optional(action)
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
447 args_string = self._format_args(action, default)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
448 part = '%s %s' % (option_string, args_string)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
449
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
450 # make it look optional if it's not required or in a group
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
451 if not action.required and action not in group_actions:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
452 part = '[%s]' % part
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
453
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
454 # add the action string to the list
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
455 parts.append(part)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
456
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
457 # insert things at the necessary indices
59282
b30f8ce82167 Merged revisions 78600-78601 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59275
diff changeset
458 for i in sorted(inserts, reverse=True):
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
459 parts[i:i] = [inserts[i]]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
460
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
461 # join all the action items with spaces
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
462 text = ' '.join([item for item in parts if item is not None])
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
463
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
464 # clean up separators for mutually exclusive groups
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
465 open = r'[\[(]'
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
466 close = r'[\])]'
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
467 text = _re.sub(r'(%s) ' % open, r'\1', text)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
468 text = _re.sub(r' (%s)' % close, r'\1', text)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
469 text = _re.sub(r'%s *%s' % (open, close), r'', text)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
470 text = _re.sub(r'\(([^|]*)\)', r'\1', text)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
471 text = text.strip()
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
472
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
473 # return the text
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
474 return text
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
475
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
476 def _format_text(self, text):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
477 if '%(prog)' in text:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
478 text = text % dict(prog=self._prog)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
479 text_width = self._width - self._current_indent
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
480 indent = ' ' * self._current_indent
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
481 return self._fill_text(text, text_width, indent) + '\n\n'
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
482
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
483 def _format_action(self, action):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
484 # determine the required width and the entry label
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
485 help_position = min(self._action_max_length + 2,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
486 self._max_help_position)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
487 help_width = self._width - help_position
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
488 action_width = help_position - self._current_indent - 2
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
489 action_header = self._format_action_invocation(action)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
490
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
491 # ho nelp; start on same line and add a final newline
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
492 if not action.help:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
493 tup = self._current_indent, '', action_header
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
494 action_header = '%*s%s\n' % tup
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
495
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
496 # short action name; start on the same line and pad two spaces
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
497 elif len(action_header) <= action_width:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
498 tup = self._current_indent, '', action_width, action_header
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
499 action_header = '%*s%-*s ' % tup
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
500 indent_first = 0
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
501
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
502 # long action name; start on the next line
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
503 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
504 tup = self._current_indent, '', action_header
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
505 action_header = '%*s%s\n' % tup
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
506 indent_first = help_position
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
507
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
508 # collect the pieces of the action help
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
509 parts = [action_header]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
510
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
511 # if there was help for the action, add lines of help text
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
512 if action.help:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
513 help_text = self._expand_help(action)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
514 help_lines = self._split_lines(help_text, help_width)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
515 parts.append('%*s%s\n' % (indent_first, '', help_lines[0]))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
516 for line in help_lines[1:]:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
517 parts.append('%*s%s\n' % (help_position, '', line))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
518
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
519 # or add a newline if the description doesn't end with one
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
520 elif not action_header.endswith('\n'):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
521 parts.append('\n')
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
522
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
523 # if there are any sub-actions, add their help as well
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
524 for subaction in self._iter_indented_subactions(action):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
525 parts.append(self._format_action(subaction))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
526
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
527 # return a single string
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
528 return self._join_parts(parts)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
529
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
530 def _format_action_invocation(self, action):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
531 if not action.option_strings:
68966
a15d65d8f269 Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
532 default = self._get_default_metavar_for_positional(action)
a15d65d8f269 Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
533 metavar, = self._metavar_formatter(action, default)(1)
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
534 return metavar
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
535
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
536 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
537 parts = []
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
538
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
539 # if the Optional doesn't take a value, format is:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
540 # -s, --long
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
541 if action.nargs == 0:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
542 parts.extend(action.option_strings)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
543
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
544 # if the Optional takes a value, format is:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
545 # -s ARGS, --long ARGS
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
546 else:
68966
a15d65d8f269 Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
547 default = self._get_default_metavar_for_optional(action)
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
548 args_string = self._format_args(action, default)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
549 for option_string in action.option_strings:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
550 parts.append('%s %s' % (option_string, args_string))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
551
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
552 return ', '.join(parts)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
553
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
554 def _metavar_formatter(self, action, default_metavar):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
555 if action.metavar is not None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
556 result = action.metavar
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
557 elif action.choices is not None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
558 choice_strs = [str(choice) for choice in action.choices]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
559 result = '{%s}' % ','.join(choice_strs)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
560 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
561 result = default_metavar
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
562
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
563 def format(tuple_size):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
564 if isinstance(result, tuple):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
565 return result
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
566 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
567 return (result, ) * tuple_size
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
568 return format
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
569
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
570 def _format_args(self, action, default_metavar):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
571 get_metavar = self._metavar_formatter(action, default_metavar)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
572 if action.nargs is None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
573 result = '%s' % get_metavar(1)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
574 elif action.nargs == OPTIONAL:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
575 result = '[%s]' % get_metavar(1)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
576 elif action.nargs == ZERO_OR_MORE:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
577 result = '[%s [%s ...]]' % get_metavar(2)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
578 elif action.nargs == ONE_OR_MORE:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
579 result = '%s [%s ...]' % get_metavar(2)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
580 elif action.nargs == REMAINDER:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
581 result = '...'
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
582 elif action.nargs == PARSER:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
583 result = '%s ...' % get_metavar(1)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
584 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
585 formats = ['%s' for _ in range(action.nargs)]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
586 result = ' '.join(formats) % get_metavar(action.nargs)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
587 return result
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
588
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
589 def _expand_help(self, action):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
590 params = dict(vars(action), prog=self._prog)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
591 for name in list(params):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
592 if params[name] is SUPPRESS:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
593 del params[name]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
594 for name in list(params):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
595 if hasattr(params[name], '__name__'):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
596 params[name] = params[name].__name__
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
597 if params.get('choices') is not None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
598 choices_str = ', '.join([str(c) for c in params['choices']])
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
599 params['choices'] = choices_str
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
600 return self._get_help_string(action) % params
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
601
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
602 def _iter_indented_subactions(self, action):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
603 try:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
604 get_subactions = action._get_subactions
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
605 except AttributeError:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
606 pass
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
607 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
608 self._indent()
79378
fb90e2ff95b7 utilize yield from
Philip Jenvey <pjenvey@underboss.org>
parents: 79017
diff changeset
609 yield from get_subactions()
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
610 self._dedent()
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
611
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
612 def _split_lines(self, text, width):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
613 text = self._whitespace_matcher.sub(' ', text).strip()
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
614 return _textwrap.wrap(text, width)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
615
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
616 def _fill_text(self, text, width, indent):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
617 text = self._whitespace_matcher.sub(' ', text).strip()
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
618 return _textwrap.fill(text, width, initial_indent=indent,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
619 subsequent_indent=indent)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
620
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
621 def _get_help_string(self, action):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
622 return action.help
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
623
68966
a15d65d8f269 Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
624 def _get_default_metavar_for_optional(self, action):
a15d65d8f269 Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
625 return action.dest.upper()
a15d65d8f269 Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
626
a15d65d8f269 Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
627 def _get_default_metavar_for_positional(self, action):
a15d65d8f269 Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
628 return action.dest
a15d65d8f269 Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
629
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
630
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
631 class RawDescriptionHelpFormatter(HelpFormatter):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
632 """Help message formatter which retains any formatting in descriptions.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
633
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
634 Only the name of this class is considered a public API. All the methods
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
635 provided by the class are considered an implementation detail.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
636 """
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
637
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
638 def _fill_text(self, text, width, indent):
72485
83f43b58c988 #13012: use splitlines(keepends=True/False) instead of splitlines(0/1).
Ezio Melotti <ezio.melotti@gmail.com>
parents: 70741
diff changeset
639 return ''.join(indent + line for line in text.splitlines(keepends=True))
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
640
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
641
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
642 class RawTextHelpFormatter(RawDescriptionHelpFormatter):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
643 """Help message formatter which retains formatting of all help text.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
644
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
645 Only the name of this class is considered a public API. All the methods
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
646 provided by the class are considered an implementation detail.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
647 """
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
648
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
649 def _split_lines(self, text, width):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
650 return text.splitlines()
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
651
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
652
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
653 class ArgumentDefaultsHelpFormatter(HelpFormatter):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
654 """Help message formatter which adds default values to argument help.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
655
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
656 Only the name of this class is considered a public API. All the methods
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
657 provided by the class are considered an implementation detail.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
658 """
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
659
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
660 def _get_help_string(self, action):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
661 help = action.help
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
662 if '%(default)' not in action.help:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
663 if action.default is not SUPPRESS:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
664 defaulting_nargs = [OPTIONAL, ZERO_OR_MORE]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
665 if action.option_strings or action.nargs in defaulting_nargs:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
666 help += ' (default: %(default)s)'
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
667 return help
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
668
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
669
68966
a15d65d8f269 Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
670 class MetavarTypeHelpFormatter(HelpFormatter):
a15d65d8f269 Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
671 """Help message formatter which uses the argument 'type' as the default
a15d65d8f269 Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
672 metavar value (instead of the argument 'dest')
a15d65d8f269 Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
673
a15d65d8f269 Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
674 Only the name of this class is considered a public API. All the methods
a15d65d8f269 Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
675 provided by the class are considered an implementation detail.
a15d65d8f269 Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
676 """
a15d65d8f269 Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
677
a15d65d8f269 Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
678 def _get_default_metavar_for_optional(self, action):
a15d65d8f269 Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
679 return action.type.__name__
a15d65d8f269 Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
680
a15d65d8f269 Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
681 def _get_default_metavar_for_positional(self, action):
a15d65d8f269 Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
682 return action.type.__name__
a15d65d8f269 Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
683
a15d65d8f269 Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
684
a15d65d8f269 Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
685
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
686 # =====================
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
687 # Options and Arguments
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
688 # =====================
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
689
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
690 def _get_action_name(argument):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
691 if argument is None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
692 return None
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
693 elif argument.option_strings:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
694 return '/'.join(argument.option_strings)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
695 elif argument.metavar not in (None, SUPPRESS):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
696 return argument.metavar
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
697 elif argument.dest not in (None, SUPPRESS):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
698 return argument.dest
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
699 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
700 return None
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
701
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
702
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
703 class ArgumentError(Exception):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
704 """An error from creating or using an argument (optional or positional).
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
705
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
706 The string value of this exception is the message, augmented with
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
707 information about the argument that caused it.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
708 """
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
709
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
710 def __init__(self, argument, message):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
711 self.argument_name = _get_action_name(argument)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
712 self.message = message
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
713
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
714 def __str__(self):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
715 if self.argument_name is None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
716 format = '%(message)s'
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
717 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
718 format = 'argument %(argument_name)s: %(message)s'
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
719 return format % dict(message=self.message,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
720 argument_name=self.argument_name)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
721
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
722
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
723 class ArgumentTypeError(Exception):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
724 """An error from trying to convert a command line string to a type."""
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
725 pass
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
726
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
727
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
728 # ==============
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
729 # Action classes
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
730 # ==============
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
731
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
732 class Action(_AttributeHolder):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
733 """Information about how to convert command line strings to Python objects.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
734
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
735 Action objects are used by an ArgumentParser to represent the information
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
736 needed to parse a single argument from one or more strings from the
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
737 command line. The keyword arguments to the Action constructor are also
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
738 all attributes of Action instances.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
739
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
740 Keyword Arguments:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
741
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
742 - option_strings -- A list of command-line option strings which
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
743 should be associated with this action.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
744
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
745 - dest -- The name of the attribute to hold the created object(s)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
746
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
747 - nargs -- The number of command-line arguments that should be
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
748 consumed. By default, one argument will be consumed and a single
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
749 value will be produced. Other values include:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
750 - N (an integer) consumes N arguments (and produces a list)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
751 - '?' consumes zero or one arguments
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
752 - '*' consumes zero or more arguments (and produces a list)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
753 - '+' consumes one or more arguments (and produces a list)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
754 Note that the difference between the default and nargs=1 is that
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
755 with the default, a single value will be produced, while with
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
756 nargs=1, a list containing a single value will be produced.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
757
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
758 - const -- The value to be produced if the option is specified and the
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
759 option uses an action that takes no values.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
760
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
761 - default -- The value to be produced if the option is not specified.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
762
78226
e7f205ce080e #14391: clarify docstring discussion of Action's 'type' argument's value.
R David Murray <rdmurray@bitdance.com>
parents: 73165
diff changeset
763 - type -- A callable that accepts a single string argument, and
e7f205ce080e #14391: clarify docstring discussion of Action's 'type' argument's value.
R David Murray <rdmurray@bitdance.com>
parents: 73165
diff changeset
764 returns the converted value. The standard Python types str, int,
e7f205ce080e #14391: clarify docstring discussion of Action's 'type' argument's value.
R David Murray <rdmurray@bitdance.com>
parents: 73165
diff changeset
765 float, and complex are useful examples of such callables. If None,
e7f205ce080e #14391: clarify docstring discussion of Action's 'type' argument's value.
R David Murray <rdmurray@bitdance.com>
parents: 73165
diff changeset
766 str is used.
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
767
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
768 - choices -- A container of values that should be allowed. If not None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
769 after a command-line argument has been converted to the appropriate
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
770 type, an exception will be raised if it is not a member of this
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
771 collection.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
772
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
773 - required -- True if the action must always be specified at the
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
774 command line. This is only meaningful for optional command-line
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
775 arguments.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
776
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
777 - help -- The help string describing the argument.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
778
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
779 - metavar -- The name to be used for the option's argument with the
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
780 help string. If None, the 'dest' value will be used as the name.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
781 """
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
782
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
783 def __init__(self,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
784 option_strings,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
785 dest,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
786 nargs=None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
787 const=None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
788 default=None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
789 type=None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
790 choices=None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
791 required=False,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
792 help=None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
793 metavar=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
794 self.option_strings = option_strings
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
795 self.dest = dest
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
796 self.nargs = nargs
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
797 self.const = const
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
798 self.default = default
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
799 self.type = type
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
800 self.choices = choices
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
801 self.required = required
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
802 self.help = help
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
803 self.metavar = metavar
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
804
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
805 def _get_kwargs(self):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
806 names = [
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
807 'option_strings',
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
808 'dest',
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
809 'nargs',
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
810 'const',
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
811 'default',
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
812 'type',
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
813 'choices',
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
814 'help',
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
815 'metavar',
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
816 ]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
817 return [(name, getattr(self, name)) for name in names]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
818
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
819 def __call__(self, parser, namespace, values, option_string=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
820 raise NotImplementedError(_('.__call__() not defined'))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
821
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
822
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
823 class _StoreAction(Action):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
824
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
825 def __init__(self,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
826 option_strings,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
827 dest,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
828 nargs=None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
829 const=None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
830 default=None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
831 type=None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
832 choices=None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
833 required=False,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
834 help=None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
835 metavar=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
836 if nargs == 0:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
837 raise ValueError('nargs for store actions must be > 0; if you '
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
838 'have nothing to store, actions such as store '
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
839 'true or store const may be more appropriate')
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
840 if const is not None and nargs != OPTIONAL:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
841 raise ValueError('nargs must be %r to supply const' % OPTIONAL)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
842 super(_StoreAction, self).__init__(
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
843 option_strings=option_strings,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
844 dest=dest,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
845 nargs=nargs,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
846 const=const,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
847 default=default,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
848 type=type,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
849 choices=choices,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
850 required=required,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
851 help=help,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
852 metavar=metavar)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
853
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
854 def __call__(self, parser, namespace, values, option_string=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
855 setattr(namespace, self.dest, values)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
856
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
857
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
858 class _StoreConstAction(Action):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
859
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
860 def __init__(self,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
861 option_strings,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
862 dest,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
863 const,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
864 default=None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
865 required=False,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
866 help=None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
867 metavar=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
868 super(_StoreConstAction, self).__init__(
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
869 option_strings=option_strings,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
870 dest=dest,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
871 nargs=0,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
872 const=const,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
873 default=default,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
874 required=required,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
875 help=help)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
876
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
877 def __call__(self, parser, namespace, values, option_string=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
878 setattr(namespace, self.dest, self.const)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
879
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
880
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
881 class _StoreTrueAction(_StoreConstAction):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
882
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
883 def __init__(self,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
884 option_strings,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
885 dest,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
886 default=False,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
887 required=False,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
888 help=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
889 super(_StoreTrueAction, self).__init__(
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
890 option_strings=option_strings,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
891 dest=dest,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
892 const=True,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
893 default=default,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
894 required=required,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
895 help=help)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
896
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
897
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
898 class _StoreFalseAction(_StoreConstAction):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
899
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
900 def __init__(self,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
901 option_strings,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
902 dest,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
903 default=True,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
904 required=False,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
905 help=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
906 super(_StoreFalseAction, self).__init__(
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
907 option_strings=option_strings,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
908 dest=dest,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
909 const=False,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
910 default=default,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
911 required=required,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
912 help=help)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
913
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
914
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
915 class _AppendAction(Action):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
916
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
917 def __init__(self,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
918 option_strings,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
919 dest,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
920 nargs=None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
921 const=None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
922 default=None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
923 type=None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
924 choices=None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
925 required=False,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
926 help=None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
927 metavar=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
928 if nargs == 0:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
929 raise ValueError('nargs for append actions must be > 0; if arg '
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
930 'strings are not supplying the value to append, '
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
931 'the append const action may be more appropriate')
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
932 if const is not None and nargs != OPTIONAL:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
933 raise ValueError('nargs must be %r to supply const' % OPTIONAL)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
934 super(_AppendAction, self).__init__(
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
935 option_strings=option_strings,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
936 dest=dest,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
937 nargs=nargs,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
938 const=const,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
939 default=default,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
940 type=type,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
941 choices=choices,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
942 required=required,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
943 help=help,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
944 metavar=metavar)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
945
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
946 def __call__(self, parser, namespace, values, option_string=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
947 items = _copy.copy(_ensure_value(namespace, self.dest, []))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
948 items.append(values)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
949 setattr(namespace, self.dest, items)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
950
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
951
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
952 class _AppendConstAction(Action):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
953
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
954 def __init__(self,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
955 option_strings,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
956 dest,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
957 const,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
958 default=None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
959 required=False,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
960 help=None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
961 metavar=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
962 super(_AppendConstAction, self).__init__(
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
963 option_strings=option_strings,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
964 dest=dest,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
965 nargs=0,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
966 const=const,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
967 default=default,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
968 required=required,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
969 help=help,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
970 metavar=metavar)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
971
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
972 def __call__(self, parser, namespace, values, option_string=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
973 items = _copy.copy(_ensure_value(namespace, self.dest, []))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
974 items.append(self.const)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
975 setattr(namespace, self.dest, items)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
976
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
977
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
978 class _CountAction(Action):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
979
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
980 def __init__(self,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
981 option_strings,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
982 dest,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
983 default=None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
984 required=False,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
985 help=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
986 super(_CountAction, self).__init__(
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
987 option_strings=option_strings,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
988 dest=dest,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
989 nargs=0,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
990 default=default,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
991 required=required,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
992 help=help)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
993
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
994 def __call__(self, parser, namespace, values, option_string=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
995 new_count = _ensure_value(namespace, self.dest, 0) + 1
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
996 setattr(namespace, self.dest, new_count)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
997
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
998
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
999 class _HelpAction(Action):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1000
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1001 def __init__(self,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1002 option_strings,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1003 dest=SUPPRESS,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1004 default=SUPPRESS,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1005 help=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1006 super(_HelpAction, self).__init__(
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1007 option_strings=option_strings,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1008 dest=dest,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1009 default=default,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1010 nargs=0,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1011 help=help)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1012
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1013 def __call__(self, parser, namespace, values, option_string=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1014 parser.print_help()
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1015 parser.exit()
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1016
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1017
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1018 class _VersionAction(Action):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1019
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1020 def __init__(self,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1021 option_strings,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1022 version=None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1023 dest=SUPPRESS,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1024 default=SUPPRESS,
61880
036017f2e74c Merged revisions 81492 via svnmerge from
Steven Bethard <steven.bethard@gmail.com>
parents: 59987
diff changeset
1025 help="show program's version number and exit"):
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1026 super(_VersionAction, self).__init__(
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1027 option_strings=option_strings,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1028 dest=dest,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1029 default=default,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1030 nargs=0,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1031 help=help)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1032 self.version = version
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1033
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1034 def __call__(self, parser, namespace, values, option_string=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1035 version = self.version
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1036 if version is None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1037 version = parser.version
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1038 formatter = parser._get_formatter()
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1039 formatter.add_text(version)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1040 parser.exit(message=formatter.format_help())
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1041
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1042
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1043 class _SubParsersAction(Action):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1044
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1045 class _ChoicesPseudoAction(Action):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1046
67009
4c0426261148 Add subparser aliases for argparse. Resolves issue 9324. Approved by Georg for beta2 on the tracker.
Steven Bethard <steven.bethard@gmail.com>
parents: 66721
diff changeset
1047 def __init__(self, name, aliases, help):
4c0426261148 Add subparser aliases for argparse. Resolves issue 9324. Approved by Georg for beta2 on the tracker.
Steven Bethard <steven.bethard@gmail.com>
parents: 66721
diff changeset
1048 metavar = dest = name
4c0426261148 Add subparser aliases for argparse. Resolves issue 9324. Approved by Georg for beta2 on the tracker.
Steven Bethard <steven.bethard@gmail.com>
parents: 66721
diff changeset
1049 if aliases:
4c0426261148 Add subparser aliases for argparse. Resolves issue 9324. Approved by Georg for beta2 on the tracker.
Steven Bethard <steven.bethard@gmail.com>
parents: 66721
diff changeset
1050 metavar += ' (%s)' % ', '.join(aliases)
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1051 sup = super(_SubParsersAction._ChoicesPseudoAction, self)
67009
4c0426261148 Add subparser aliases for argparse. Resolves issue 9324. Approved by Georg for beta2 on the tracker.
Steven Bethard <steven.bethard@gmail.com>
parents: 66721
diff changeset
1052 sup.__init__(option_strings=[], dest=dest, help=help,
4c0426261148 Add subparser aliases for argparse. Resolves issue 9324. Approved by Georg for beta2 on the tracker.
Steven Bethard <steven.bethard@gmail.com>
parents: 66721
diff changeset
1053 metavar=metavar)
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1054
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1055 def __init__(self,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1056 option_strings,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1057 prog,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1058 parser_class,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1059 dest=SUPPRESS,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1060 help=None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1061 metavar=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1062
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1063 self._prog_prefix = prog
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1064 self._parser_class = parser_class
69003
74f9ed48ae5d Issue #9026: Fix order of argparse sub-commands in help messages.
Steven Bethard <steven.bethard@gmail.com>
parents: 68967
diff changeset
1065 self._name_parser_map = _collections.OrderedDict()
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1066 self._choices_actions = []
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1067
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1068 super(_SubParsersAction, self).__init__(
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1069 option_strings=option_strings,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1070 dest=dest,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1071 nargs=PARSER,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1072 choices=self._name_parser_map,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1073 help=help,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1074 metavar=metavar)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1075
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1076 def add_parser(self, name, **kwargs):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1077 # set prog from the existing prefix
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1078 if kwargs.get('prog') is None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1079 kwargs['prog'] = '%s %s' % (self._prog_prefix, name)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1080
67009
4c0426261148 Add subparser aliases for argparse. Resolves issue 9324. Approved by Georg for beta2 on the tracker.
Steven Bethard <steven.bethard@gmail.com>
parents: 66721
diff changeset
1081 aliases = kwargs.pop('aliases', ())
4c0426261148 Add subparser aliases for argparse. Resolves issue 9324. Approved by Georg for beta2 on the tracker.
Steven Bethard <steven.bethard@gmail.com>
parents: 66721
diff changeset
1082
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1083 # create a pseudo-action to hold the choice help
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1084 if 'help' in kwargs:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1085 help = kwargs.pop('help')
67009
4c0426261148 Add subparser aliases for argparse. Resolves issue 9324. Approved by Georg for beta2 on the tracker.
Steven Bethard <steven.bethard@gmail.com>
parents: 66721
diff changeset
1086 choice_action = self._ChoicesPseudoAction(name, aliases, help)
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1087 self._choices_actions.append(choice_action)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1088
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1089 # create the parser and add it to the map
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1090 parser = self._parser_class(**kwargs)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1091 self._name_parser_map[name] = parser
67009
4c0426261148 Add subparser aliases for argparse. Resolves issue 9324. Approved by Georg for beta2 on the tracker.
Steven Bethard <steven.bethard@gmail.com>
parents: 66721
diff changeset
1092
4c0426261148 Add subparser aliases for argparse. Resolves issue 9324. Approved by Georg for beta2 on the tracker.
Steven Bethard <steven.bethard@gmail.com>
parents: 66721
diff changeset
1093 # make parser available under aliases also
4c0426261148 Add subparser aliases for argparse. Resolves issue 9324. Approved by Georg for beta2 on the tracker.
Steven Bethard <steven.bethard@gmail.com>
parents: 66721
diff changeset
1094 for alias in aliases:
4c0426261148 Add subparser aliases for argparse. Resolves issue 9324. Approved by Georg for beta2 on the tracker.
Steven Bethard <steven.bethard@gmail.com>
parents: 66721
diff changeset
1095 self._name_parser_map[alias] = parser
4c0426261148 Add subparser aliases for argparse. Resolves issue 9324. Approved by Georg for beta2 on the tracker.
Steven Bethard <steven.bethard@gmail.com>
parents: 66721
diff changeset
1096
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1097 return parser
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1098
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1099 def _get_subactions(self):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1100 return self._choices_actions
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1101
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1102 def __call__(self, parser, namespace, values, option_string=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1103 parser_name = values[0]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1104 arg_strings = values[1:]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1105
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1106 # set the parser name if requested
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1107 if self.dest is not SUPPRESS:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1108 setattr(namespace, self.dest, parser_name)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1109
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1110 # select the parser
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1111 try:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1112 parser = self._name_parser_map[parser_name]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1113 except KeyError:
66661
4c9844732925 Allow translators to reorder placeholders in localizable messages from
Éric Araujo <merwok@netwok.org>
parents: 66655
diff changeset
1114 args = {'parser_name': parser_name,
4c9844732925 Allow translators to reorder placeholders in localizable messages from
Éric Araujo <merwok@netwok.org>
parents: 66655
diff changeset
1115 'choices': ', '.join(self._name_parser_map)}
4c9844732925 Allow translators to reorder placeholders in localizable messages from
Éric Araujo <merwok@netwok.org>
parents: 66655
diff changeset
1116 msg = _('unknown parser %(parser_name)r (choices: %(choices)s)') % args
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1117 raise ArgumentError(self, msg)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1118
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1119 # parse all the remaining options into the namespace
65887
ff6f39b3c38e Fix bug 9340 - argparse parse_known_args didn't work with subparsers
Steven Bethard <steven.bethard@gmail.com>
parents: 65869
diff changeset
1120 # store any unrecognized options on the object, so that the top
ff6f39b3c38e Fix bug 9340 - argparse parse_known_args didn't work with subparsers
Steven Bethard <steven.bethard@gmail.com>
parents: 65869
diff changeset
1121 # level parser can decide what to do with them
ff6f39b3c38e Fix bug 9340 - argparse parse_known_args didn't work with subparsers
Steven Bethard <steven.bethard@gmail.com>
parents: 65869
diff changeset
1122 namespace, arg_strings = parser.parse_known_args(arg_strings, namespace)
ff6f39b3c38e Fix bug 9340 - argparse parse_known_args didn't work with subparsers
Steven Bethard <steven.bethard@gmail.com>
parents: 65869
diff changeset
1123 if arg_strings:
ff6f39b3c38e Fix bug 9340 - argparse parse_known_args didn't work with subparsers
Steven Bethard <steven.bethard@gmail.com>
parents: 65869
diff changeset
1124 vars(namespace).setdefault(_UNRECOGNIZED_ARGS_ATTR, [])
ff6f39b3c38e Fix bug 9340 - argparse parse_known_args didn't work with subparsers
Steven Bethard <steven.bethard@gmail.com>
parents: 65869
diff changeset
1125 getattr(namespace, _UNRECOGNIZED_ARGS_ATTR).extend(arg_strings)
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1126
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1127
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1128 # ==============
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1129 # Type classes
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1130 # ==============
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1131
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1132 class FileType(object):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1133 """Factory for creating file object types
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1134
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1135 Instances of FileType are typically passed as type= arguments to the
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1136 ArgumentParser add_argument() method.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1137
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1138 Keyword Arguments:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1139 - mode -- A string indicating how the file is to be opened. Accepts the
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1140 same values as the builtin open() function.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1141 - bufsize -- The file's desired buffer size. Accepts the same values as
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1142 the builtin open() function.
80864
d5a0698a8354 #11175: argparse.FileType now accepts encoding and errors arguments.
Petri Lehtinen <petri@digip.org>
parents: 79378
diff changeset
1143 - encoding -- The file's encoding. Accepts the same values as the
d5a0698a8354 #11175: argparse.FileType now accepts encoding and errors arguments.
Petri Lehtinen <petri@digip.org>
parents: 79378
diff changeset
1144 the builtin open() function.
d5a0698a8354 #11175: argparse.FileType now accepts encoding and errors arguments.
Petri Lehtinen <petri@digip.org>
parents: 79378
diff changeset
1145 - errors -- A string indicating how encoding and decoding errors are to
d5a0698a8354 #11175: argparse.FileType now accepts encoding and errors arguments.
Petri Lehtinen <petri@digip.org>
parents: 79378
diff changeset
1146 be handled. Accepts the same value as the builtin open() function.
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1147 """
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1148
80864
d5a0698a8354 #11175: argparse.FileType now accepts encoding and errors arguments.
Petri Lehtinen <petri@digip.org>
parents: 79378
diff changeset
1149 def __init__(self, mode='r', bufsize=-1, encoding=None, errors=None):
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1150 self._mode = mode
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1151 self._bufsize = bufsize
80864
d5a0698a8354 #11175: argparse.FileType now accepts encoding and errors arguments.
Petri Lehtinen <petri@digip.org>
parents: 79378
diff changeset
1152 self._encoding = encoding
d5a0698a8354 #11175: argparse.FileType now accepts encoding and errors arguments.
Petri Lehtinen <petri@digip.org>
parents: 79378
diff changeset
1153 self._errors = errors
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1154
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1155 def __call__(self, string):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1156 # the special argument "-" means sys.std{in,out}
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1157 if string == '-':
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1158 if 'r' in self._mode:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1159 return _sys.stdin
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1160 elif 'w' in self._mode:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1161 return _sys.stdout
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1162 else:
66655
83ad00a3a489 Fix incorrect use of gettext in argparse (#10497).
Éric Araujo <merwok@netwok.org>
parents: 65887
diff changeset
1163 msg = _('argument "-" with mode %r') % self._mode
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1164 raise ValueError(msg)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1165
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1166 # all other arguments are used as file names
67746
8a30a2cb4b9e Issue #9509: make argarse properly handle IOErrors raised by argparse.FileType. Approved by Georg in the tracker.
Steven Bethard <steven.bethard@gmail.com>
parents: 67009
diff changeset
1167 try:
80864
d5a0698a8354 #11175: argparse.FileType now accepts encoding and errors arguments.
Petri Lehtinen <petri@digip.org>
parents: 79378
diff changeset
1168 return open(string, self._mode, self._bufsize, self._encoding,
d5a0698a8354 #11175: argparse.FileType now accepts encoding and errors arguments.
Petri Lehtinen <petri@digip.org>
parents: 79378
diff changeset
1169 self._errors)
81039
7d69d04522e3 Replace IOError with OSError (#16715)
Andrew Svetlov <andrew.svetlov@gmail.com>
parents: 80864
diff changeset
1170 except OSError as e:
67746
8a30a2cb4b9e Issue #9509: make argarse properly handle IOErrors raised by argparse.FileType. Approved by Georg in the tracker.
Steven Bethard <steven.bethard@gmail.com>
parents: 67009
diff changeset
1171 message = _("can't open '%s': %s")
8a30a2cb4b9e Issue #9509: make argarse properly handle IOErrors raised by argparse.FileType. Approved by Georg in the tracker.
Steven Bethard <steven.bethard@gmail.com>
parents: 67009
diff changeset
1172 raise ArgumentTypeError(message % (string, e))
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1173
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1174 def __repr__(self):
67746
8a30a2cb4b9e Issue #9509: make argarse properly handle IOErrors raised by argparse.FileType. Approved by Georg in the tracker.
Steven Bethard <steven.bethard@gmail.com>
parents: 67009
diff changeset
1175 args = self._mode, self._bufsize
80864
d5a0698a8354 #11175: argparse.FileType now accepts encoding and errors arguments.
Petri Lehtinen <petri@digip.org>
parents: 79378
diff changeset
1176 kwargs = [('encoding', self._encoding), ('errors', self._errors)]
d5a0698a8354 #11175: argparse.FileType now accepts encoding and errors arguments.
Petri Lehtinen <petri@digip.org>
parents: 79378
diff changeset
1177 args_str = ', '.join([repr(arg) for arg in args if arg != -1] +
d5a0698a8354 #11175: argparse.FileType now accepts encoding and errors arguments.
Petri Lehtinen <petri@digip.org>
parents: 79378
diff changeset
1178 ['%s=%r' % (kw, arg) for kw, arg in kwargs
d5a0698a8354 #11175: argparse.FileType now accepts encoding and errors arguments.
Petri Lehtinen <petri@digip.org>
parents: 79378
diff changeset
1179 if arg is not None])
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1180 return '%s(%s)' % (type(self).__name__, args_str)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1181
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1182 # ===========================
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1183 # Optional and Positional Parsing
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1184 # ===========================
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1185
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1186 class Namespace(_AttributeHolder):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1187 """Simple object for storing attributes.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1188
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1189 Implements equality by attribute names and values, and provides a simple
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1190 string representation.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1191 """
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1192
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1193 def __init__(self, **kwargs):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1194 for name in kwargs:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1195 setattr(self, name, kwargs[name])
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1196
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1197 def __eq__(self, other):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1198 return vars(self) == vars(other)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1199
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1200 def __ne__(self, other):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1201 return not (self == other)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1202
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1203 def __contains__(self, key):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1204 return key in self.__dict__
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1205
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1206
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1207 class _ActionsContainer(object):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1208
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1209 def __init__(self,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1210 description,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1211 prefix_chars,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1212 argument_default,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1213 conflict_handler):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1214 super(_ActionsContainer, self).__init__()
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1215
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1216 self.description = description
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1217 self.argument_default = argument_default
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1218 self.prefix_chars = prefix_chars
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1219 self.conflict_handler = conflict_handler
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1220
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1221 # set up registries
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1222 self._registries = {}
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1223
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1224 # register actions
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1225 self.register('action', None, _StoreAction)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1226 self.register('action', 'store', _StoreAction)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1227 self.register('action', 'store_const', _StoreConstAction)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1228 self.register('action', 'store_true', _StoreTrueAction)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1229 self.register('action', 'store_false', _StoreFalseAction)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1230 self.register('action', 'append', _AppendAction)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1231 self.register('action', 'append_const', _AppendConstAction)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1232 self.register('action', 'count', _CountAction)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1233 self.register('action', 'help', _HelpAction)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1234 self.register('action', 'version', _VersionAction)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1235 self.register('action', 'parsers', _SubParsersAction)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1236
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1237 # raise an exception if the conflict handler is invalid
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1238 self._get_handler()
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1239
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1240 # action storage
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1241 self._actions = []
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1242 self._option_string_actions = {}
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1243
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1244 # groups
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1245 self._action_groups = []
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1246 self._mutually_exclusive_groups = []
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1247
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1248 # defaults storage
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1249 self._defaults = {}
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1250
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1251 # determines whether an "option" looks like a negative number
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1252 self._negative_number_matcher = _re.compile(r'^-\d+$|^-\d*\.\d+$')
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1253
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1254 # whether or not there are any optionals that look like negative
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1255 # numbers -- uses a list so it can be shared and edited
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1256 self._has_negative_number_optionals = []
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1257
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1258 # ====================
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1259 # Registration methods
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1260 # ====================
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1261 def register(self, registry_name, value, object):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1262 registry = self._registries.setdefault(registry_name, {})
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1263 registry[value] = object
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1264
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1265 def _registry_get(self, registry_name, value, default=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1266 return self._registries[registry_name].get(value, default)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1267
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1268 # ==================================
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1269 # Namespace default accessor methods
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1270 # ==================================
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1271 def set_defaults(self, **kwargs):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1272 self._defaults.update(kwargs)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1273
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1274 # if these defaults match any existing arguments, replace
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1275 # the previous default on the object with the new one
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1276 for action in self._actions:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1277 if action.dest in kwargs:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1278 action.default = kwargs[action.dest]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1279
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1280 def get_default(self, dest):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1281 for action in self._actions:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1282 if action.dest == dest and action.default is not None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1283 return action.default
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1284 return self._defaults.get(dest, None)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1285
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1286
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1287 # =======================
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1288 # Adding argument actions
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1289 # =======================
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1290 def add_argument(self, *args, **kwargs):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1291 """
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1292 add_argument(dest, ..., name=value, ...)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1293 add_argument(option_string, option_string, ..., name=value, ...)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1294 """
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1295
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1296 # if no positional args are supplied or only one is supplied and
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1297 # it doesn't look like an option string, parse a positional
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1298 # argument
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1299 chars = self.prefix_chars
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1300 if not args or len(args) == 1 and args[0][0] not in chars:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1301 if args and 'dest' in kwargs:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1302 raise ValueError('dest supplied twice for positional argument')
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1303 kwargs = self._get_positional_kwargs(*args, **kwargs)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1304
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1305 # otherwise, we're adding an optional argument
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1306 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1307 kwargs = self._get_optional_kwargs(*args, **kwargs)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1308
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1309 # if no default was supplied, use the parser-level default
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1310 if 'default' not in kwargs:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1311 dest = kwargs['dest']
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1312 if dest in self._defaults:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1313 kwargs['default'] = self._defaults[dest]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1314 elif self.argument_default is not None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1315 kwargs['default'] = self.argument_default
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1316
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1317 # create the action object, and add it to the parser
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1318 action_class = self._pop_action_class(kwargs)
73165
8e57b5d8f58f Closes #13258: Use callable() built-in in the standard library.
Florent Xicluna <florent.xicluna@gmail.com>
parents: 69126
diff changeset
1319 if not callable(action_class):
69126
69ab5251f3f0 Issue #9347: Fix formatting for tuples in argparse type= error messages.
Steven Bethard <steven.bethard@gmail.com>
parents: 69003
diff changeset
1320 raise ValueError('unknown action "%s"' % (action_class,))
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1321 action = action_class(**kwargs)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1322
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1323 # raise an error if the action type is not callable
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1324 type_func = self._registry_get('type', action.type, action.type)
73165
8e57b5d8f58f Closes #13258: Use callable() built-in in the standard library.
Florent Xicluna <florent.xicluna@gmail.com>
parents: 69126
diff changeset
1325 if not callable(type_func):
69126
69ab5251f3f0 Issue #9347: Fix formatting for tuples in argparse type= error messages.
Steven Bethard <steven.bethard@gmail.com>
parents: 69003
diff changeset
1326 raise ValueError('%r is not callable' % (type_func,))
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1327
68967
c89db9b36ea6 Issue #9348: Raise an early error if argparse nargs and metavar don't match.
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
1328 # raise an error if the metavar does not match the type
c89db9b36ea6 Issue #9348: Raise an early error if argparse nargs and metavar don't match.
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
1329 if hasattr(self, "_get_formatter"):
c89db9b36ea6 Issue #9348: Raise an early error if argparse nargs and metavar don't match.
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
1330 try:
c89db9b36ea6 Issue #9348: Raise an early error if argparse nargs and metavar don't match.
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
1331 self._get_formatter()._format_args(action, None)
c89db9b36ea6 Issue #9348: Raise an early error if argparse nargs and metavar don't match.
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
1332 except TypeError:
c89db9b36ea6 Issue #9348: Raise an early error if argparse nargs and metavar don't match.
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
1333 raise ValueError("length of metavar tuple does not match nargs")
c89db9b36ea6 Issue #9348: Raise an early error if argparse nargs and metavar don't match.
Steven Bethard <steven.bethard@gmail.com>
parents: 67819
diff changeset
1334
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1335 return self._add_action(action)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1336
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1337 def add_argument_group(self, *args, **kwargs):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1338 group = _ArgumentGroup(self, *args, **kwargs)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1339 self._action_groups.append(group)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1340 return group
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1341
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1342 def add_mutually_exclusive_group(self, **kwargs):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1343 group = _MutuallyExclusiveGroup(self, **kwargs)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1344 self._mutually_exclusive_groups.append(group)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1345 return group
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1346
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1347 def _add_action(self, action):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1348 # resolve any conflicts
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1349 self._check_conflict(action)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1350
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1351 # add to actions list
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1352 self._actions.append(action)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1353 action.container = self
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1354
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1355 # index the action by any option strings it has
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1356 for option_string in action.option_strings:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1357 self._option_string_actions[option_string] = action
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1358
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1359 # set the flag if any option strings look like negative numbers
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1360 for option_string in action.option_strings:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1361 if self._negative_number_matcher.match(option_string):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1362 if not self._has_negative_number_optionals:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1363 self._has_negative_number_optionals.append(True)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1364
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1365 # return the created action
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1366 return action
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1367
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1368 def _remove_action(self, action):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1369 self._actions.remove(action)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1370
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1371 def _add_container_actions(self, container):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1372 # collect groups by titles
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1373 title_group_map = {}
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1374 for group in self._action_groups:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1375 if group.title in title_group_map:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1376 msg = _('cannot merge actions - two groups are named %r')
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1377 raise ValueError(msg % (group.title))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1378 title_group_map[group.title] = group
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1379
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1380 # map each action to its group
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1381 group_map = {}
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1382 for group in container._action_groups:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1383
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1384 # if a group with the title exists, use that, otherwise
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1385 # create a new group matching the container's group
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1386 if group.title not in title_group_map:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1387 title_group_map[group.title] = self.add_argument_group(
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1388 title=group.title,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1389 description=group.description,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1390 conflict_handler=group.conflict_handler)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1391
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1392 # map the actions to their new group
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1393 for action in group._group_actions:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1394 group_map[action] = title_group_map[group.title]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1395
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1396 # add container's mutually exclusive groups
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1397 # NOTE: if add_mutually_exclusive_group ever gains title= and
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1398 # description= then this code will need to be expanded as above
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1399 for group in container._mutually_exclusive_groups:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1400 mutex_group = self.add_mutually_exclusive_group(
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1401 required=group.required)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1402
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1403 # map the actions to their new mutex group
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1404 for action in group._group_actions:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1405 group_map[action] = mutex_group
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1406
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1407 # add all actions to this container or their group
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1408 for action in container._actions:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1409 group_map.get(action, self)._add_action(action)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1410
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1411 def _get_positional_kwargs(self, dest, **kwargs):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1412 # make sure required is not specified
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1413 if 'required' in kwargs:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1414 msg = _("'required' is an invalid argument for positionals")
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1415 raise TypeError(msg)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1416
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1417 # mark positional arguments as required if at least one is
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1418 # always required
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1419 if kwargs.get('nargs') not in [OPTIONAL, ZERO_OR_MORE]:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1420 kwargs['required'] = True
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1421 if kwargs.get('nargs') == ZERO_OR_MORE and 'default' not in kwargs:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1422 kwargs['required'] = True
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1423
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1424 # return the keyword arguments with no option strings
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1425 return dict(kwargs, dest=dest, option_strings=[])
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1426
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1427 def _get_optional_kwargs(self, *args, **kwargs):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1428 # determine short and long option strings
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1429 option_strings = []
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1430 long_option_strings = []
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1431 for option_string in args:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1432 # error on strings that don't start with an appropriate prefix
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1433 if not option_string[0] in self.prefix_chars:
66661
4c9844732925 Allow translators to reorder placeholders in localizable messages from
Éric Araujo <merwok@netwok.org>
parents: 66655
diff changeset
1434 args = {'option': option_string,
4c9844732925 Allow translators to reorder placeholders in localizable messages from
Éric Araujo <merwok@netwok.org>
parents: 66655
diff changeset
1435 'prefix_chars': self.prefix_chars}
4c9844732925 Allow translators to reorder placeholders in localizable messages from
Éric Araujo <merwok@netwok.org>
parents: 66655
diff changeset
1436 msg = _('invalid option string %(option)r: '
4c9844732925 Allow translators to reorder placeholders in localizable messages from
Éric Araujo <merwok@netwok.org>
parents: 66655
diff changeset
1437 'must start with a character %(prefix_chars)r')
4c9844732925 Allow translators to reorder placeholders in localizable messages from
Éric Araujo <merwok@netwok.org>
parents: 66655
diff changeset
1438 raise ValueError(msg % args)
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1439
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1440 # strings starting with two prefix characters are long options
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1441 option_strings.append(option_string)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1442 if option_string[0] in self.prefix_chars:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1443 if len(option_string) > 1:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1444 if option_string[1] in self.prefix_chars:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1445 long_option_strings.append(option_string)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1446
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1447 # infer destination, '--foo-bar' -> 'foo_bar' and '-x' -> 'x'
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1448 dest = kwargs.pop('dest', None)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1449 if dest is None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1450 if long_option_strings:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1451 dest_option_string = long_option_strings[0]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1452 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1453 dest_option_string = option_strings[0]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1454 dest = dest_option_string.lstrip(self.prefix_chars)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1455 if not dest:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1456 msg = _('dest= is required for options like %r')
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1457 raise ValueError(msg % option_string)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1458 dest = dest.replace('-', '_')
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1459
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1460 # return the updated keyword arguments
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1461 return dict(kwargs, dest=dest, option_strings=option_strings)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1462
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1463 def _pop_action_class(self, kwargs, default=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1464 action = kwargs.pop('action', default)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1465 return self._registry_get('action', action, action)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1466
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1467 def _get_handler(self):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1468 # determine function from conflict handler string
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1469 handler_func_name = '_handle_conflict_%s' % self.conflict_handler
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1470 try:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1471 return getattr(self, handler_func_name)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1472 except AttributeError:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1473 msg = _('invalid conflict_resolution value: %r')
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1474 raise ValueError(msg % self.conflict_handler)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1475
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1476 def _check_conflict(self, action):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1477
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1478 # find all options that conflict with this option
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1479 confl_optionals = []
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1480 for option_string in action.option_strings:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1481 if option_string in self._option_string_actions:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1482 confl_optional = self._option_string_actions[option_string]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1483 confl_optionals.append((option_string, confl_optional))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1484
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1485 # resolve any conflicts
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1486 if confl_optionals:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1487 conflict_handler = self._get_handler()
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1488 conflict_handler(action, confl_optionals)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1489
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1490 def _handle_conflict_error(self, action, conflicting_actions):
66721
1827a8ac9b18 Use proper plural forms in argparse (#4391)
Éric Araujo <merwok@netwok.org>
parents: 66661
diff changeset
1491 message = ngettext('conflicting option string: %s',
1827a8ac9b18 Use proper plural forms in argparse (#4391)
Éric Araujo <merwok@netwok.org>
parents: 66661
diff changeset
1492 'conflicting option strings: %s',
1827a8ac9b18 Use proper plural forms in argparse (#4391)
Éric Araujo <merwok@netwok.org>
parents: 66661
diff changeset
1493 len(conflicting_actions))
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1494 conflict_string = ', '.join([option_string
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1495 for option_string, action
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1496 in conflicting_actions])
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1497 raise ArgumentError(action, message % conflict_string)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1498
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1499 def _handle_conflict_resolve(self, action, conflicting_actions):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1500
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1501 # remove all conflicting options
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1502 for option_string, action in conflicting_actions:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1503
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1504 # remove the conflicting option
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1505 action.option_strings.remove(option_string)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1506 self._option_string_actions.pop(option_string, None)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1507
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1508 # if the option now has no option string, remove it from the
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1509 # container holding it
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1510 if not action.option_strings:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1511 action.container._remove_action(action)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1512
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1513
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1514 class _ArgumentGroup(_ActionsContainer):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1515
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1516 def __init__(self, container, title=None, description=None, **kwargs):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1517 # add any missing keyword arguments by checking the container
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1518 update = kwargs.setdefault
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1519 update('conflict_handler', container.conflict_handler)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1520 update('prefix_chars', container.prefix_chars)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1521 update('argument_default', container.argument_default)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1522 super_init = super(_ArgumentGroup, self).__init__
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1523 super_init(description=description, **kwargs)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1524
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1525 # group attributes
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1526 self.title = title
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1527 self._group_actions = []
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1528
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1529 # share most attributes with the container
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1530 self._registries = container._registries
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1531 self._actions = container._actions
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1532 self._option_string_actions = container._option_string_actions
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1533 self._defaults = container._defaults
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1534 self._has_negative_number_optionals = \
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1535 container._has_negative_number_optionals
67819
2bef7ab6256b #10680: fix mutually exclusive arguments in argument groups.
Georg Brandl <georg@python.org>
parents: 67746
diff changeset
1536 self._mutually_exclusive_groups = container._mutually_exclusive_groups
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1537
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1538 def _add_action(self, action):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1539 action = super(_ArgumentGroup, self)._add_action(action)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1540 self._group_actions.append(action)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1541 return action
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1542
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1543 def _remove_action(self, action):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1544 super(_ArgumentGroup, self)._remove_action(action)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1545 self._group_actions.remove(action)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1546
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1547
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1548 class _MutuallyExclusiveGroup(_ArgumentGroup):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1549
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1550 def __init__(self, container, required=False):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1551 super(_MutuallyExclusiveGroup, self).__init__(container)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1552 self.required = required
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1553 self._container = container
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1554
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1555 def _add_action(self, action):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1556 if action.required:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1557 msg = _('mutually exclusive arguments must be optional')
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1558 raise ValueError(msg)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1559 action = self._container._add_action(action)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1560 self._group_actions.append(action)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1561 return action
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1562
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1563 def _remove_action(self, action):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1564 self._container._remove_action(action)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1565 self._group_actions.remove(action)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1566
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1567
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1568 class ArgumentParser(_AttributeHolder, _ActionsContainer):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1569 """Object for parsing command line strings into Python objects.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1570
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1571 Keyword Arguments:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1572 - prog -- The name of the program (default: sys.argv[0])
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1573 - usage -- A usage message (default: auto-generated from arguments)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1574 - description -- A description of what the program does
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1575 - epilog -- Text following the argument descriptions
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1576 - parents -- Parsers whose arguments should be copied into this one
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1577 - formatter_class -- HelpFormatter class for printing help messages
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1578 - prefix_chars -- Characters that prefix optional arguments
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1579 - fromfile_prefix_chars -- Characters that prefix files containing
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1580 additional arguments
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1581 - argument_default -- The default value for all arguments
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1582 - conflict_handler -- String indicating how to handle conflicts
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1583 - add_help -- Add a -h/-help option
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1584 """
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1585
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1586 def __init__(self,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1587 prog=None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1588 usage=None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1589 description=None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1590 epilog=None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1591 parents=[],
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1592 formatter_class=HelpFormatter,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1593 prefix_chars='-',
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1594 fromfile_prefix_chars=None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1595 argument_default=None,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1596 conflict_handler='error',
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1597 add_help=True):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1598
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1599 superinit = super(ArgumentParser, self).__init__
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1600 superinit(description=description,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1601 prefix_chars=prefix_chars,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1602 argument_default=argument_default,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1603 conflict_handler=conflict_handler)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1604
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1605 # default setting for prog
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1606 if prog is None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1607 prog = _os.path.basename(_sys.argv[0])
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1608
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1609 self.prog = prog
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1610 self.usage = usage
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1611 self.epilog = epilog
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1612 self.formatter_class = formatter_class
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1613 self.fromfile_prefix_chars = fromfile_prefix_chars
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1614 self.add_help = add_help
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1615
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1616 add_group = self.add_argument_group
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1617 self._positionals = add_group(_('positional arguments'))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1618 self._optionals = add_group(_('optional arguments'))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1619 self._subparsers = None
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1620
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1621 # register types
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1622 def identity(string):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1623 return string
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1624 self.register('type', None, identity)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1625
77972
5393382c1b1d Issue #13248: argparse: Remove obsolete argument "version" of ArgumentParser.
Florent Xicluna <florent.xicluna@gmail.com>
parents: 73166
diff changeset
1626 # add help argument if necessary
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1627 # (using explicit default to override global argument_default)
63690
2850bd919277 #9444: use first of prefix_chars for help opt instead of raising error
R. David Murray <rdmurray@bitdance.com>
parents: 61880
diff changeset
1628 default_prefix = '-' if '-' in prefix_chars else prefix_chars[0]
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1629 if self.add_help:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1630 self.add_argument(
63690
2850bd919277 #9444: use first of prefix_chars for help opt instead of raising error
R. David Murray <rdmurray@bitdance.com>
parents: 61880
diff changeset
1631 default_prefix+'h', default_prefix*2+'help',
2850bd919277 #9444: use first of prefix_chars for help opt instead of raising error
R. David Murray <rdmurray@bitdance.com>
parents: 61880
diff changeset
1632 action='help', default=SUPPRESS,
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1633 help=_('show this help message and exit'))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1634
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1635 # add parent arguments and defaults
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1636 for parent in parents:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1637 self._add_container_actions(parent)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1638 try:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1639 defaults = parent._defaults
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1640 except AttributeError:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1641 pass
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1642 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1643 self._defaults.update(defaults)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1644
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1645 # =======================
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1646 # Pretty __repr__ methods
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1647 # =======================
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1648 def _get_kwargs(self):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1649 names = [
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1650 'prog',
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1651 'usage',
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1652 'description',
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1653 'formatter_class',
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1654 'conflict_handler',
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1655 'add_help',
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1656 ]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1657 return [(name, getattr(self, name)) for name in names]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1658
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1659 # ==================================
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1660 # Optional/Positional adding methods
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1661 # ==================================
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1662 def add_subparsers(self, **kwargs):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1663 if self._subparsers is not None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1664 self.error(_('cannot have multiple subparser arguments'))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1665
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1666 # add the parser class to the arguments if it's not present
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1667 kwargs.setdefault('parser_class', type(self))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1668
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1669 if 'title' in kwargs or 'description' in kwargs:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1670 title = _(kwargs.pop('title', 'subcommands'))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1671 description = _(kwargs.pop('description', None))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1672 self._subparsers = self.add_argument_group(title, description)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1673 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1674 self._subparsers = self._positionals
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1675
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1676 # prog defaults to the usage message of this parser, skipping
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1677 # optional arguments and with no "usage:" prefix
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1678 if kwargs.get('prog') is None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1679 formatter = self._get_formatter()
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1680 positionals = self._get_positional_actions()
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1681 groups = self._mutually_exclusive_groups
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1682 formatter.add_usage(self.usage, positionals, groups, '')
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1683 kwargs['prog'] = formatter.format_help().strip()
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1684
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1685 # create the parsers action and add it to the positionals list
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1686 parsers_class = self._pop_action_class(kwargs, 'parsers')
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1687 action = parsers_class(option_strings=[], **kwargs)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1688 self._subparsers._add_action(action)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1689
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1690 # return the created parsers action
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1691 return action
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1692
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1693 def _add_action(self, action):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1694 if action.option_strings:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1695 self._optionals._add_action(action)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1696 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1697 self._positionals._add_action(action)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1698 return action
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1699
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1700 def _get_optional_actions(self):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1701 return [action
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1702 for action in self._actions
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1703 if action.option_strings]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1704
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1705 def _get_positional_actions(self):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1706 return [action
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1707 for action in self._actions
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1708 if not action.option_strings]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1709
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1710 # =====================================
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1711 # Command line argument parsing methods
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1712 # =====================================
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1713 def parse_args(self, args=None, namespace=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1714 args, argv = self.parse_known_args(args, namespace)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1715 if argv:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1716 msg = _('unrecognized arguments: %s')
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1717 self.error(msg % ' '.join(argv))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1718 return args
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1719
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1720 def parse_known_args(self, args=None, namespace=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1721 if args is None:
78879
5d8454fcc629 #15847: allow args to be a tuple in parse_args
R David Murray <rdmurray@bitdance.com>
parents: 78821
diff changeset
1722 # args default to the system args
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1723 args = _sys.argv[1:]
78879
5d8454fcc629 #15847: allow args to be a tuple in parse_args
R David Murray <rdmurray@bitdance.com>
parents: 78821
diff changeset
1724 else:
5d8454fcc629 #15847: allow args to be a tuple in parse_args
R David Murray <rdmurray@bitdance.com>
parents: 78821
diff changeset
1725 # make sure that args are mutable
5d8454fcc629 #15847: allow args to be a tuple in parse_args
R David Murray <rdmurray@bitdance.com>
parents: 78821
diff changeset
1726 args = list(args)
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1727
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1728 # default Namespace built from parser defaults
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1729 if namespace is None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1730 namespace = Namespace()
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1731
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1732 # add any action defaults that aren't present
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1733 for action in self._actions:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1734 if action.dest is not SUPPRESS:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1735 if not hasattr(namespace, action.dest):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1736 if action.default is not SUPPRESS:
78821
1b614921aefa #12776,#11839: call argparse type function only once.
R David Murray <rdmurray@bitdance.com>
parents: 78232
diff changeset
1737 setattr(namespace, action.dest, action.default)
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1738
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1739 # add any parser defaults that aren't present
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1740 for dest in self._defaults:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1741 if not hasattr(namespace, dest):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1742 setattr(namespace, dest, self._defaults[dest])
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1743
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1744 # parse the arguments and exit if there are any errors
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1745 try:
65887
ff6f39b3c38e Fix bug 9340 - argparse parse_known_args didn't work with subparsers
Steven Bethard <steven.bethard@gmail.com>
parents: 65869
diff changeset
1746 namespace, args = self._parse_known_args(args, namespace)
ff6f39b3c38e Fix bug 9340 - argparse parse_known_args didn't work with subparsers
Steven Bethard <steven.bethard@gmail.com>
parents: 65869
diff changeset
1747 if hasattr(namespace, _UNRECOGNIZED_ARGS_ATTR):
ff6f39b3c38e Fix bug 9340 - argparse parse_known_args didn't work with subparsers
Steven Bethard <steven.bethard@gmail.com>
parents: 65869
diff changeset
1748 args.extend(getattr(namespace, _UNRECOGNIZED_ARGS_ATTR))
ff6f39b3c38e Fix bug 9340 - argparse parse_known_args didn't work with subparsers
Steven Bethard <steven.bethard@gmail.com>
parents: 65869
diff changeset
1749 delattr(namespace, _UNRECOGNIZED_ARGS_ATTR)
ff6f39b3c38e Fix bug 9340 - argparse parse_known_args didn't work with subparsers
Steven Bethard <steven.bethard@gmail.com>
parents: 65869
diff changeset
1750 return namespace, args
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1751 except ArgumentError:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1752 err = _sys.exc_info()[1]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1753 self.error(str(err))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1754
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1755 def _parse_known_args(self, arg_strings, namespace):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1756 # replace arg strings that are file references
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1757 if self.fromfile_prefix_chars is not None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1758 arg_strings = self._read_args_from_files(arg_strings)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1759
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1760 # map all mutually exclusive arguments to the other arguments
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1761 # they can't occur with
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1762 action_conflicts = {}
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1763 for mutex_group in self._mutually_exclusive_groups:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1764 group_actions = mutex_group._group_actions
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1765 for i, mutex_action in enumerate(mutex_group._group_actions):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1766 conflicts = action_conflicts.setdefault(mutex_action, [])
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1767 conflicts.extend(group_actions[:i])
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1768 conflicts.extend(group_actions[i + 1:])
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1769
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1770 # find all option indices, and determine the arg_string_pattern
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1771 # which has an 'O' if there is an option at an index,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1772 # an 'A' if there is an argument, or a '-' if there is a '--'
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1773 option_string_indices = {}
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1774 arg_string_pattern_parts = []
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1775 arg_strings_iter = iter(arg_strings)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1776 for i, arg_string in enumerate(arg_strings_iter):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1777
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1778 # all args after -- are non-options
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1779 if arg_string == '--':
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1780 arg_string_pattern_parts.append('-')
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1781 for arg_string in arg_strings_iter:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1782 arg_string_pattern_parts.append('A')
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1783
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1784 # otherwise, add the arg to the arg strings
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1785 # and note the index if it was an option
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1786 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1787 option_tuple = self._parse_optional(arg_string)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1788 if option_tuple is None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1789 pattern = 'A'
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1790 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1791 option_string_indices[i] = option_tuple
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1792 pattern = 'O'
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1793 arg_string_pattern_parts.append(pattern)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1794
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1795 # join the pieces together to form the pattern
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1796 arg_strings_pattern = ''.join(arg_string_pattern_parts)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1797
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1798 # converts arg strings to the appropriate and then takes the action
59282
b30f8ce82167 Merged revisions 78600-78601 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59275
diff changeset
1799 seen_actions = set()
b30f8ce82167 Merged revisions 78600-78601 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59275
diff changeset
1800 seen_non_default_actions = set()
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1801
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1802 def take_action(action, argument_strings, option_string=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1803 seen_actions.add(action)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1804 argument_values = self._get_values(action, argument_strings)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1805
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1806 # error if this argument is not allowed with other previously
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1807 # seen arguments, assuming that actions that use the default
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1808 # value don't really count as "present"
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1809 if argument_values is not action.default:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1810 seen_non_default_actions.add(action)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1811 for conflict_action in action_conflicts.get(action, []):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1812 if conflict_action in seen_non_default_actions:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1813 msg = _('not allowed with argument %s')
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1814 action_name = _get_action_name(conflict_action)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1815 raise ArgumentError(action, msg % action_name)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1816
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1817 # take the action if we didn't receive a SUPPRESS value
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1818 # (e.g. from a default)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1819 if argument_values is not SUPPRESS:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1820 action(self, namespace, argument_values, option_string)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1821
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1822 # function to convert arg_strings into an optional action
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1823 def consume_optional(start_index):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1824
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1825 # get the optional identified at this index
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1826 option_tuple = option_string_indices[start_index]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1827 action, option_string, explicit_arg = option_tuple
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1828
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1829 # identify additional optionals in the same arg string
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1830 # (e.g. -xyz is the same as -x -y -z if no args are required)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1831 match_argument = self._match_argument
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1832 action_tuples = []
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1833 while True:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1834
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1835 # if we found no optional action, skip it
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1836 if action is None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1837 extras.append(arg_strings[start_index])
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1838 return start_index + 1
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1839
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1840 # if there is an explicit argument, try to match the
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1841 # optional's string arguments to only this
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1842 if explicit_arg is not None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1843 arg_count = match_argument(action, 'A')
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1844
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1845 # if the action is a single-dash option and takes no
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1846 # arguments, try to parse more single-dash options out
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1847 # of the tail of the option string
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1848 chars = self.prefix_chars
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1849 if arg_count == 0 and option_string[1] not in chars:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1850 action_tuples.append((action, [], option_string))
65867
cb9e10034e4a Fix bug 9352 where characters were being lost in parsing some short options
Steven Bethard <steven.bethard@gmail.com>
parents: 65863
diff changeset
1851 char = option_string[0]
cb9e10034e4a Fix bug 9352 where characters were being lost in parsing some short options
Steven Bethard <steven.bethard@gmail.com>
parents: 65863
diff changeset
1852 option_string = char + explicit_arg[0]
cb9e10034e4a Fix bug 9352 where characters were being lost in parsing some short options
Steven Bethard <steven.bethard@gmail.com>
parents: 65863
diff changeset
1853 new_explicit_arg = explicit_arg[1:] or None
cb9e10034e4a Fix bug 9352 where characters were being lost in parsing some short options
Steven Bethard <steven.bethard@gmail.com>
parents: 65863
diff changeset
1854 optionals_map = self._option_string_actions
cb9e10034e4a Fix bug 9352 where characters were being lost in parsing some short options
Steven Bethard <steven.bethard@gmail.com>
parents: 65863
diff changeset
1855 if option_string in optionals_map:
cb9e10034e4a Fix bug 9352 where characters were being lost in parsing some short options
Steven Bethard <steven.bethard@gmail.com>
parents: 65863
diff changeset
1856 action = optionals_map[option_string]
cb9e10034e4a Fix bug 9352 where characters were being lost in parsing some short options
Steven Bethard <steven.bethard@gmail.com>
parents: 65863
diff changeset
1857 explicit_arg = new_explicit_arg
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1858 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1859 msg = _('ignored explicit argument %r')
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1860 raise ArgumentError(action, msg % explicit_arg)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1861
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1862 # if the action expect exactly one argument, we've
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1863 # successfully matched the option; exit the loop
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1864 elif arg_count == 1:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1865 stop = start_index + 1
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1866 args = [explicit_arg]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1867 action_tuples.append((action, args, option_string))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1868 break
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1869
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1870 # error if a double-dash option did not use the
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1871 # explicit argument
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1872 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1873 msg = _('ignored explicit argument %r')
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1874 raise ArgumentError(action, msg % explicit_arg)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1875
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1876 # if there is no explicit argument, try to match the
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1877 # optional's string arguments with the following strings
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1878 # if successful, exit the loop
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1879 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1880 start = start_index + 1
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1881 selected_patterns = arg_strings_pattern[start:]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1882 arg_count = match_argument(action, selected_patterns)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1883 stop = start + arg_count
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1884 args = arg_strings[start:stop]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1885 action_tuples.append((action, args, option_string))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1886 break
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1887
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1888 # add the Optional to the list and return the index at which
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1889 # the Optional's string args stopped
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1890 assert action_tuples
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1891 for action, args, option_string in action_tuples:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1892 take_action(action, args, option_string)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1893 return stop
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1894
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1895 # the list of Positionals left to be parsed; this is modified
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1896 # by consume_positionals()
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1897 positionals = self._get_positional_actions()
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1898
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1899 # function to convert arg_strings into positional actions
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1900 def consume_positionals(start_index):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1901 # match as many Positionals as possible
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1902 match_partial = self._match_arguments_partial
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1903 selected_pattern = arg_strings_pattern[start_index:]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1904 arg_counts = match_partial(positionals, selected_pattern)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1905
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1906 # slice off the appropriate arg strings for each Positional
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1907 # and add the Positional and its args to the list
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1908 for action, arg_count in zip(positionals, arg_counts):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1909 args = arg_strings[start_index: start_index + arg_count]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1910 start_index += arg_count
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1911 take_action(action, args)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1912
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1913 # slice off the Positionals that we just parsed and return the
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1914 # index at which the Positionals' string args stopped
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1915 positionals[:] = positionals[len(arg_counts):]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1916 return start_index
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1917
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1918 # consume Positionals and Optionals alternately, until we have
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1919 # passed the last option string
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1920 extras = []
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1921 start_index = 0
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1922 if option_string_indices:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1923 max_option_string_index = max(option_string_indices)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1924 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1925 max_option_string_index = -1
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1926 while start_index <= max_option_string_index:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1927
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1928 # consume any Positionals preceding the next option
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1929 next_option_string_index = min([
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1930 index
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1931 for index in option_string_indices
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1932 if index >= start_index])
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1933 if start_index != next_option_string_index:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1934 positionals_end_index = consume_positionals(start_index)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1935
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1936 # only try to parse the next optional if we didn't consume
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1937 # the option string during the positionals parsing
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1938 if positionals_end_index > start_index:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1939 start_index = positionals_end_index
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1940 continue
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1941 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1942 start_index = positionals_end_index
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1943
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1944 # if we consumed all the positionals we could and we're not
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1945 # at the index of an option string, there were extra arguments
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1946 if start_index not in option_string_indices:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1947 strings = arg_strings[start_index:next_option_string_index]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1948 extras.extend(strings)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1949 start_index = next_option_string_index
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1950
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1951 # consume the next optional and any arguments for it
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1952 start_index = consume_optional(start_index)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1953
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1954 # consume any positionals following the last Optional
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1955 stop_index = consume_positionals(start_index)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1956
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1957 # if we didn't consume all the argument strings, there were extras
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1958 extras.extend(arg_strings[stop_index:])
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1959
78822
74f6d87cd471 Merge #12776,#11839: call argparse type function only once.
R David Murray <rdmurray@bitdance.com>
parents: 78234 78821
diff changeset
1960 # make sure all required actions were present and also convert
74f6d87cd471 Merge #12776,#11839: call argparse type function only once.
R David Murray <rdmurray@bitdance.com>
parents: 78234 78821
diff changeset
1961 # action defaults which were not given as arguments
74f6d87cd471 Merge #12776,#11839: call argparse type function only once.
R David Murray <rdmurray@bitdance.com>
parents: 78234 78821
diff changeset
1962 required_actions = []
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1963 for action in self._actions:
78821
1b614921aefa #12776,#11839: call argparse type function only once.
R David Murray <rdmurray@bitdance.com>
parents: 78232
diff changeset
1964 if action not in seen_actions:
1b614921aefa #12776,#11839: call argparse type function only once.
R David Murray <rdmurray@bitdance.com>
parents: 78232
diff changeset
1965 if action.required:
78822
74f6d87cd471 Merge #12776,#11839: call argparse type function only once.
R David Murray <rdmurray@bitdance.com>
parents: 78234 78821
diff changeset
1966 required_actions.append(_get_action_name(action))
78821
1b614921aefa #12776,#11839: call argparse type function only once.
R David Murray <rdmurray@bitdance.com>
parents: 78232
diff changeset
1967 else:
1b614921aefa #12776,#11839: call argparse type function only once.
R David Murray <rdmurray@bitdance.com>
parents: 78232
diff changeset
1968 # Convert action default now instead of doing it before
1b614921aefa #12776,#11839: call argparse type function only once.
R David Murray <rdmurray@bitdance.com>
parents: 78232
diff changeset
1969 # parsing arguments to avoid calling convert functions
1b614921aefa #12776,#11839: call argparse type function only once.
R David Murray <rdmurray@bitdance.com>
parents: 78232
diff changeset
1970 # twice (which may fail) if the argument was given, but
1b614921aefa #12776,#11839: call argparse type function only once.
R David Murray <rdmurray@bitdance.com>
parents: 78232
diff changeset
1971 # only if it was defined already in the namespace
1b614921aefa #12776,#11839: call argparse type function only once.
R David Murray <rdmurray@bitdance.com>
parents: 78232
diff changeset
1972 if (action.default is not None and
79017
9ae9326cd79a Merge 3.2 fix updates and tests for issue #15906.
Barry Warsaw <barry@python.org>
parents: 79001 79016
diff changeset
1973 isinstance(action.default, str) and
78822
74f6d87cd471 Merge #12776,#11839: call argparse type function only once.
R David Murray <rdmurray@bitdance.com>
parents: 78234 78821
diff changeset
1974 hasattr(namespace, action.dest) and
74f6d87cd471 Merge #12776,#11839: call argparse type function only once.
R David Murray <rdmurray@bitdance.com>
parents: 78234 78821
diff changeset
1975 action.default is getattr(namespace, action.dest)):
78821
1b614921aefa #12776,#11839: call argparse type function only once.
R David Murray <rdmurray@bitdance.com>
parents: 78232
diff changeset
1976 setattr(namespace, action.dest,
1b614921aefa #12776,#11839: call argparse type function only once.
R David Murray <rdmurray@bitdance.com>
parents: 78232
diff changeset
1977 self._get_value(action, action.default))
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1978
70741
cab204a79e09 #10424: argument names are now included in the missing argument message
R David Murray <rdmurray@bitdance.com>
parents: 69127
diff changeset
1979 if required_actions:
cab204a79e09 #10424: argument names are now included in the missing argument message
R David Murray <rdmurray@bitdance.com>
parents: 69127
diff changeset
1980 self.error(_('the following arguments are required: %s') %
cab204a79e09 #10424: argument names are now included in the missing argument message
R David Murray <rdmurray@bitdance.com>
parents: 69127
diff changeset
1981 ', '.join(required_actions))
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1982
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1983 # make sure all required groups had one option present
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1984 for group in self._mutually_exclusive_groups:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1985 if group.required:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1986 for action in group._group_actions:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1987 if action in seen_non_default_actions:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1988 break
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1989
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1990 # if no actions were used, report the error
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1991 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1992 names = [_get_action_name(action)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1993 for action in group._group_actions
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1994 if action.help is not SUPPRESS]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1995 msg = _('one of the arguments %s is required')
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1996 self.error(msg % ' '.join(names))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1997
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1998 # return the updated namespace and the extra arguments
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
1999 return namespace, extras
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2000
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2001 def _read_args_from_files(self, arg_strings):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2002 # expand arguments referencing files
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2003 new_arg_strings = []
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2004 for arg_string in arg_strings:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2005
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2006 # for regular arguments, just add them back into the list
78229
ac53876d1cc8 #12353: argparse now correctly handles null argument values.
R David Murray <rdmurray@bitdance.com>
parents: 78226
diff changeset
2007 if not arg_string or arg_string[0] not in self.fromfile_prefix_chars:
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2008 new_arg_strings.append(arg_string)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2009
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2010 # replace arguments referencing files with the file content
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2011 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2012 try:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2013 args_file = open(arg_string[1:])
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2014 try:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2015 arg_strings = []
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2016 for arg_line in args_file.read().splitlines():
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2017 for arg in self.convert_arg_line_to_args(arg_line):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2018 arg_strings.append(arg)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2019 arg_strings = self._read_args_from_files(arg_strings)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2020 new_arg_strings.extend(arg_strings)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2021 finally:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2022 args_file.close()
81039
7d69d04522e3 Replace IOError with OSError (#16715)
Andrew Svetlov <andrew.svetlov@gmail.com>
parents: 80864
diff changeset
2023 except OSError:
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2024 err = _sys.exc_info()[1]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2025 self.error(str(err))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2026
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2027 # return the modified argument list
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2028 return new_arg_strings
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2029
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2030 def convert_arg_line_to_args(self, arg_line):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2031 return [arg_line]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2032
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2033 def _match_argument(self, action, arg_strings_pattern):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2034 # match the pattern for this action to the arg strings
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2035 nargs_pattern = self._get_nargs_pattern(action)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2036 match = _re.match(nargs_pattern, arg_strings_pattern)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2037
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2038 # raise an exception if we weren't able to find a match
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2039 if match is None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2040 nargs_errors = {
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2041 None: _('expected one argument'),
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2042 OPTIONAL: _('expected at most one argument'),
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2043 ONE_OR_MORE: _('expected at least one argument'),
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2044 }
66721
1827a8ac9b18 Use proper plural forms in argparse (#4391)
Éric Araujo <merwok@netwok.org>
parents: 66661
diff changeset
2045 default = ngettext('expected %s argument',
1827a8ac9b18 Use proper plural forms in argparse (#4391)
Éric Araujo <merwok@netwok.org>
parents: 66661
diff changeset
2046 'expected %s arguments',
1827a8ac9b18 Use proper plural forms in argparse (#4391)
Éric Araujo <merwok@netwok.org>
parents: 66661
diff changeset
2047 action.nargs) % action.nargs
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2048 msg = nargs_errors.get(action.nargs, default)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2049 raise ArgumentError(action, msg)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2050
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2051 # return the number of arguments matched
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2052 return len(match.group(1))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2053
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2054 def _match_arguments_partial(self, actions, arg_strings_pattern):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2055 # progressively shorten the actions list by slicing off the
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2056 # final actions until we find a match
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2057 result = []
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2058 for i in range(len(actions), 0, -1):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2059 actions_slice = actions[:i]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2060 pattern = ''.join([self._get_nargs_pattern(action)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2061 for action in actions_slice])
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2062 match = _re.match(pattern, arg_strings_pattern)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2063 if match is not None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2064 result.extend([len(string) for string in match.groups()])
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2065 break
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2066
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2067 # return the list of arg string counts
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2068 return result
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2069
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2070 def _parse_optional(self, arg_string):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2071 # if it's an empty string, it was meant to be a positional
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2072 if not arg_string:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2073 return None
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2074
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2075 # if it doesn't start with a prefix, it was meant to be positional
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2076 if not arg_string[0] in self.prefix_chars:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2077 return None
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2078
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2079 # if the option string is present in the parser, return the action
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2080 if arg_string in self._option_string_actions:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2081 action = self._option_string_actions[arg_string]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2082 return action, arg_string, None
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2083
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2084 # if it's just a single character, it was meant to be positional
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2085 if len(arg_string) == 1:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2086 return None
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2087
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2088 # if the option string before the "=" is present, return the action
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2089 if '=' in arg_string:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2090 option_string, explicit_arg = arg_string.split('=', 1)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2091 if option_string in self._option_string_actions:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2092 action = self._option_string_actions[option_string]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2093 return action, option_string, explicit_arg
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2094
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2095 # search through all possible prefixes of the option string
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2096 # and all actions in the parser for possible interpretations
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2097 option_tuples = self._get_option_tuples(arg_string)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2098
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2099 # if multiple actions match, the option string was ambiguous
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2100 if len(option_tuples) > 1:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2101 options = ', '.join([option_string
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2102 for action, option_string, explicit_arg in option_tuples])
66661
4c9844732925 Allow translators to reorder placeholders in localizable messages from
Éric Araujo <merwok@netwok.org>
parents: 66655
diff changeset
2103 args = {'option': arg_string, 'matches': options}
4c9844732925 Allow translators to reorder placeholders in localizable messages from
Éric Araujo <merwok@netwok.org>
parents: 66655
diff changeset
2104 msg = _('ambiguous option: %(option)s could match %(matches)s')
4c9844732925 Allow translators to reorder placeholders in localizable messages from
Éric Araujo <merwok@netwok.org>
parents: 66655
diff changeset
2105 self.error(msg % args)
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2106
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2107 # if exactly one action matched, this segmentation is good,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2108 # so return the parsed action
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2109 elif len(option_tuples) == 1:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2110 option_tuple, = option_tuples
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2111 return option_tuple
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2112
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2113 # if it was not found as an option, but it looks like a negative
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2114 # number, it was meant to be positional
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2115 # unless there are negative-number-like options
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2116 if self._negative_number_matcher.match(arg_string):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2117 if not self._has_negative_number_optionals:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2118 return None
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2119
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2120 # if it contains a space, it was meant to be a positional
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2121 if ' ' in arg_string:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2122 return None
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2123
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2124 # it was meant to be an optional but there is no such option
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2125 # in this parser (though it might be a valid option in a subparser)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2126 return None, arg_string, None
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2127
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2128 def _get_option_tuples(self, option_string):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2129 result = []
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2130
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2131 # option strings starting with two prefix characters are only
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2132 # split at the '='
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2133 chars = self.prefix_chars
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2134 if option_string[0] in chars and option_string[1] in chars:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2135 if '=' in option_string:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2136 option_prefix, explicit_arg = option_string.split('=', 1)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2137 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2138 option_prefix = option_string
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2139 explicit_arg = None
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2140 for option_string in self._option_string_actions:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2141 if option_string.startswith(option_prefix):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2142 action = self._option_string_actions[option_string]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2143 tup = action, option_string, explicit_arg
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2144 result.append(tup)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2145
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2146 # single character options can be concatenated with their arguments
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2147 # but multiple character options always have to have their argument
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2148 # separate
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2149 elif option_string[0] in chars and option_string[1] not in chars:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2150 option_prefix = option_string
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2151 explicit_arg = None
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2152 short_option_prefix = option_string[:2]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2153 short_explicit_arg = option_string[2:]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2154
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2155 for option_string in self._option_string_actions:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2156 if option_string == short_option_prefix:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2157 action = self._option_string_actions[option_string]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2158 tup = action, option_string, short_explicit_arg
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2159 result.append(tup)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2160 elif option_string.startswith(option_prefix):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2161 action = self._option_string_actions[option_string]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2162 tup = action, option_string, explicit_arg
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2163 result.append(tup)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2164
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2165 # shouldn't ever get here
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2166 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2167 self.error(_('unexpected option string: %s') % option_string)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2168
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2169 # return the collected option tuples
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2170 return result
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2171
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2172 def _get_nargs_pattern(self, action):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2173 # in all examples below, we have to allow for '--' args
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2174 # which are represented as '-' in the pattern
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2175 nargs = action.nargs
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2176
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2177 # the default (None) is assumed to be a single argument
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2178 if nargs is None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2179 nargs_pattern = '(-*A-*)'
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2180
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2181 # allow zero or one arguments
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2182 elif nargs == OPTIONAL:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2183 nargs_pattern = '(-*A?-*)'
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2184
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2185 # allow zero or more arguments
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2186 elif nargs == ZERO_OR_MORE:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2187 nargs_pattern = '(-*[A-]*)'
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2188
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2189 # allow one or more arguments
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2190 elif nargs == ONE_OR_MORE:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2191 nargs_pattern = '(-*A[A-]*)'
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2192
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2193 # allow any number of options or arguments
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2194 elif nargs == REMAINDER:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2195 nargs_pattern = '([-AO]*)'
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2196
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2197 # allow one argument followed by any number of options or arguments
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2198 elif nargs == PARSER:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2199 nargs_pattern = '(-*A[-AO]*)'
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2200
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2201 # all others should be integers
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2202 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2203 nargs_pattern = '(-*%s-*)' % '-*'.join('A' * nargs)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2204
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2205 # if this is an optional action, -- is not allowed
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2206 if action.option_strings:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2207 nargs_pattern = nargs_pattern.replace('-*', '')
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2208 nargs_pattern = nargs_pattern.replace('-', '')
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2209
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2210 # return the pattern
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2211 return nargs_pattern
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2212
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2213 # ========================
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2214 # Value conversion methods
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2215 # ========================
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2216 def _get_values(self, action, arg_strings):
78232
18b114be013e #13922: argparse no longer incorrectly strips '--' after the first one.
R David Murray <rdmurray@bitdance.com>
parents: 78229
diff changeset
2217 # for everything but PARSER, REMAINDER args, strip out first '--'
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2218 if action.nargs not in [PARSER, REMAINDER]:
78232
18b114be013e #13922: argparse no longer incorrectly strips '--' after the first one.
R David Murray <rdmurray@bitdance.com>
parents: 78229
diff changeset
2219 try:
18b114be013e #13922: argparse no longer incorrectly strips '--' after the first one.
R David Murray <rdmurray@bitdance.com>
parents: 78229
diff changeset
2220 arg_strings.remove('--')
18b114be013e #13922: argparse no longer incorrectly strips '--' after the first one.
R David Murray <rdmurray@bitdance.com>
parents: 78229
diff changeset
2221 except ValueError:
18b114be013e #13922: argparse no longer incorrectly strips '--' after the first one.
R David Murray <rdmurray@bitdance.com>
parents: 78229
diff changeset
2222 pass
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2223
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2224 # optional argument produces a default when not present
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2225 if not arg_strings and action.nargs == OPTIONAL:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2226 if action.option_strings:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2227 value = action.const
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2228 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2229 value = action.default
59282
b30f8ce82167 Merged revisions 78600-78601 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59275
diff changeset
2230 if isinstance(value, str):
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2231 value = self._get_value(action, value)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2232 self._check_value(action, value)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2233
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2234 # when nargs='*' on a positional, if there were no command-line
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2235 # args, use the default if it is anything other than None
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2236 elif (not arg_strings and action.nargs == ZERO_OR_MORE and
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2237 not action.option_strings):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2238 if action.default is not None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2239 value = action.default
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2240 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2241 value = arg_strings
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2242 self._check_value(action, value)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2243
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2244 # single argument or optional argument produces a single value
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2245 elif len(arg_strings) == 1 and action.nargs in [None, OPTIONAL]:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2246 arg_string, = arg_strings
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2247 value = self._get_value(action, arg_string)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2248 self._check_value(action, value)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2249
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2250 # REMAINDER arguments convert all values, checking none
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2251 elif action.nargs == REMAINDER:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2252 value = [self._get_value(action, v) for v in arg_strings]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2253
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2254 # PARSER arguments convert all values, but check only the first
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2255 elif action.nargs == PARSER:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2256 value = [self._get_value(action, v) for v in arg_strings]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2257 self._check_value(action, value[0])
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2258
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2259 # all other types of nargs produce a list
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2260 else:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2261 value = [self._get_value(action, v) for v in arg_strings]
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2262 for v in value:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2263 self._check_value(action, v)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2264
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2265 # return the converted value
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2266 return value
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2267
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2268 def _get_value(self, action, arg_string):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2269 type_func = self._registry_get('type', action.type, action.type)
73165
8e57b5d8f58f Closes #13258: Use callable() built-in in the standard library.
Florent Xicluna <florent.xicluna@gmail.com>
parents: 69126
diff changeset
2270 if not callable(type_func):
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2271 msg = _('%r is not callable')
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2272 raise ArgumentError(action, msg % type_func)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2273
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2274 # convert the value to the appropriate type
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2275 try:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2276 result = type_func(arg_string)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2277
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2278 # ArgumentTypeErrors indicate errors
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2279 except ArgumentTypeError:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2280 name = getattr(action.type, '__name__', repr(action.type))
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2281 msg = str(_sys.exc_info()[1])
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2282 raise ArgumentError(action, msg)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2283
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2284 # TypeErrors or ValueErrors also indicate errors
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2285 except (TypeError, ValueError):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2286 name = getattr(action.type, '__name__', repr(action.type))
66661
4c9844732925 Allow translators to reorder placeholders in localizable messages from
Éric Araujo <merwok@netwok.org>
parents: 66655
diff changeset
2287 args = {'type': name, 'value': arg_string}
4c9844732925 Allow translators to reorder placeholders in localizable messages from
Éric Araujo <merwok@netwok.org>
parents: 66655
diff changeset
2288 msg = _('invalid %(type)s value: %(value)r')
4c9844732925 Allow translators to reorder placeholders in localizable messages from
Éric Araujo <merwok@netwok.org>
parents: 66655
diff changeset
2289 raise ArgumentError(action, msg % args)
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2290
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2291 # return the converted value
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2292 return result
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2293
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2294 def _check_value(self, action, value):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2295 # converted value must be one of the choices (if specified)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2296 if action.choices is not None and value not in action.choices:
66661
4c9844732925 Allow translators to reorder placeholders in localizable messages from
Éric Araujo <merwok@netwok.org>
parents: 66655
diff changeset
2297 args = {'value': value,
4c9844732925 Allow translators to reorder placeholders in localizable messages from
Éric Araujo <merwok@netwok.org>
parents: 66655
diff changeset
2298 'choices': ', '.join(map(repr, action.choices))}
4c9844732925 Allow translators to reorder placeholders in localizable messages from
Éric Araujo <merwok@netwok.org>
parents: 66655
diff changeset
2299 msg = _('invalid choice: %(value)r (choose from %(choices)s)')
4c9844732925 Allow translators to reorder placeholders in localizable messages from
Éric Araujo <merwok@netwok.org>
parents: 66655
diff changeset
2300 raise ArgumentError(action, msg % args)
59275
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2301
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2302 # =======================
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2303 # Help-formatting methods
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2304 # =======================
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2305 def format_usage(self):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2306 formatter = self._get_formatter()
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2307 formatter.add_usage(self.usage, self._actions,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2308 self._mutually_exclusive_groups)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2309 return formatter.format_help()
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2310
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2311 def format_help(self):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2312 formatter = self._get_formatter()
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2313
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2314 # usage
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2315 formatter.add_usage(self.usage, self._actions,
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2316 self._mutually_exclusive_groups)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2317
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2318 # description
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2319 formatter.add_text(self.description)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2320
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2321 # positionals, optionals and user-defined groups
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2322 for action_group in self._action_groups:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2323 formatter.start_section(action_group.title)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2324 formatter.add_text(action_group.description)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2325 formatter.add_arguments(action_group._group_actions)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2326 formatter.end_section()
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2327
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2328 # epilog
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2329 formatter.add_text(self.epilog)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2330
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2331 # determine help from format above
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2332 return formatter.format_help()
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2333
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2334 def _get_formatter(self):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2335 return self.formatter_class(prog=self.prog)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2336
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2337 # =====================
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2338 # Help-printing methods
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2339 # =====================
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2340 def print_usage(self, file=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2341 if file is None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2342 file = _sys.stdout
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2343 self._print_message(self.format_usage(), file)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2344
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2345 def print_help(self, file=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2346 if file is None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2347 file = _sys.stdout
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2348 self._print_message(self.format_help(), file)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2349
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2350 def _print_message(self, message, file=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2351 if message:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2352 if file is None:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2353 file = _sys.stderr
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2354 file.write(message)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2355
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2356 # ===============
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2357 # Exiting methods
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2358 # ===============
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2359 def exit(self, status=0, message=None):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2360 if message:
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2361 self._print_message(message, _sys.stderr)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2362 _sys.exit(status)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2363
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2364 def error(self, message):
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2365 """error(message: string)
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2366
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2367 Prints a usage message incorporating the message to stderr and
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2368 exits.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2369
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2370 If you override this in a subclass, it should not return -- it
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2371 should either exit or raise an exception.
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2372 """
12bcb69938b3 Merged revisions 78586-78593 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 59258
diff changeset
2373 self.print_usage(_sys.stderr)
66661
4c9844732925 Allow translators to reorder placeholders in localizable messages from
Éric Araujo <merwok@netwok.org>
parents: 66655
diff changeset
2374 args = {'prog': self.prog, 'message': message}
4c9844732925 Allow translators to reorder placeholders in localizable messages from
Éric Araujo <merwok@netwok.org>
parents: 66655
diff changeset
2375 self.exit(2, _('%(prog)s: error: %(message)s\n') % args)