cpython-lru_cache-weakref: Lib/fileinput.py annotate

annotate Lib/fileinput.py @ 87690:66c1c9f32567 default tip

Add use_weakref option to functools.lru_cache The use_weakref option makes lru_cache create weak references to the function arguments when creating the cache key, which prevents them from staying in the memory forever even after all other references to them are gone. This is a proof of concept for http://bugs.python.org/issue19859

author	Radomir Dopieralski <devel@sheep.art.pl>
date	Tue, 03 Dec 2013 16:02:48 +0100
parents	694e2708b4a8
children

rev	line source
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	1 """Helper class to quickly write a loop over all standard input files.
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	2
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	3 Typical use is:
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	4
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	5 import fileinput
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	6 for line in fileinput.input():
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	7 process(line)
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	8
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	9 This iterates over the lines of all files listed in sys.argv[1:],
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	10 defaulting to sys.stdin if the list is empty. If a filename is '-' it
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	11 is also replaced by sys.stdin. To specify an alternative list of
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	12 filenames, pass it as the argument to input(). A single file name is
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	13 also allowed.
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	14
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	15 Functions filename(), lineno() return the filename and cumulative line
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	16 number of the line that has just been read; filelineno() returns its
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	17 line number in the current file; isfirstline() returns true iff the
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	18 line just read is the first line of its file; isstdin() returns true
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	19 iff the line was read from sys.stdin. Function nextfile() closes the
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	20 current file so that the next iteration will read the first line from
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	21 the next file (if any); lines not read from the file will not count
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	22 towards the cumulative line count; the filename is not changed until
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	23 after the first line of the next file has been read. Function close()
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	24 closes the sequence.
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	25
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	26 Before any lines have been read, filename() returns None and both line
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	27 numbers are zero; nextfile() has no effect. After all lines have been
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	28 read, filename() and the line number functions return the values
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	29 pertaining to the last line read; nextfile() has no effect.
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	30
36595 c6fba456227b Patch #1212287: fileinput.input() now has a mode parameter for Georg Brandl <georg@python.org> parents: 36594 diff changeset	31 All files are opened in text mode by default, you can override this by
c6fba456227b Patch #1212287: fileinput.input() now has a mode parameter for Georg Brandl <georg@python.org> parents: 36594 diff changeset	32 setting the mode parameter to input() or FileInput.__init__().
81039 7d69d04522e3 Replace IOError with OSError (#16715) Andrew Svetlov <andrew.svetlov@gmail.com> parents: 80932 diff changeset	33 If an I/O error occurs during opening or reading a file, the OSError
36595 c6fba456227b Patch #1212287: fileinput.input() now has a mode parameter for Georg Brandl <georg@python.org> parents: 36594 diff changeset	34 exception is raised.
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	35
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	36 If sys.stdin is used more than once, the second and further use will
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	37 return no lines, except perhaps for interactive use, or if it has been
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	38 explicitly reset (e.g. using sys.stdin.seek(0)).
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	39
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	40 Empty files are opened and immediately closed; the only time their
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	41 presence in the list of filenames is noticeable at all is when the
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	42 last file opened is empty.
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	43
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	44 It is possible that the last line of a file doesn't end in a newline
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	45 character; otherwise lines are returned including the trailing
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	46 newline.
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	47
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	48 Class FileInput is the implementation; its methods filename(),
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	49 lineno(), fileline(), isfirstline(), isstdin(), nextfile() and close()
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	50 correspond to the functions in the module. In addition it has a
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	51 readline() method which returns the next input line, and a
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	52 __getitem__() method which implements the sequence behavior. The
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	53 sequence must be accessed in strictly sequential order; sequence
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	54 access and readline() cannot be mixed.
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	55
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	56 Optional in-place filtering: if the keyword argument inplace=1 is
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	57 passed to input() or to the FileInput constructor, the file is moved
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	58 to a backup file and standard output is directed to the input file.
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	59 This makes it possible to write a filter that rewrites its input file
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	60 in place. If the keyword argument backup=".<some extension>" is also
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	61 given, it specifies the extension for the backup file, and the backup
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	62 file remains around; by default, the extension is ".bak" and it is
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	63 deleted when the output file is closed. In-place filtering is
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	64 disabled when standard input is read. XXX The current implementation
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	65 does not work for MS-DOS 8+3 filesystems.
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	66
15746 4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	67 Performance: this module is unfortunately one of the slower ways of
4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	68 processing large numbers of input lines. Nevertheless, a significant
4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	69 speed-up has been obtained by using readlines(bufsize) instead of
4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	70 readline(). A new keyword argument, bufsize=N, is present on the
4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	71 input() function and the FileInput() class to override the default
4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	72 buffer size.
4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	73
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	74 XXX Possible additions:
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	75
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	76 - optional getopt argument processing
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	77 - isatty()
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	78 - read(), read(size), even readlines()
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	79
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	80 """
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	81
23697 c0e8c07ae1d6 Replace obsolete stat module constants with Walter Dörwald <walter@livinglogic.de> parents: 23521 diff changeset	82 import sys, os
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	83
54169 904a1bd35e00 Use PEP 8 and true booleans. Georg Brandl <georg@python.org> parents: 43707 diff changeset	84 __all__ = ["input", "close", "nextfile", "filename", "lineno", "filelineno",
904a1bd35e00 Use PEP 8 and true booleans. Georg Brandl <georg@python.org> parents: 43707 diff changeset	85 "isfirstline", "isstdin", "FileInput"]
16072 bae889f44cd1 more __all__ updates Skip Montanaro <skip@pobox.com> parents: 15746 diff changeset	86
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	87 _state = None
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	88
15746 4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	89 DEFAULT_BUFSIZE = 8*1024
4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	90
54169 904a1bd35e00 Use PEP 8 and true booleans. Georg Brandl <georg@python.org> parents: 43707 diff changeset	91 def input(files=None, inplace=False, backup="", bufsize=0,
36596 e57377f0a167 Patch #1215184: FileInput now can be given an opening hook which can Georg Brandl <georg@python.org> parents: 36595 diff changeset	92 mode="r", openhook=None):
84362 0760b58526ba Issue #18315: Improve fileinput docs by adding 'bufsize' where missing and Terry Jan Reedy <tjreedy@udel.edu> parents: 73434 diff changeset	93 """Return an instance of the FileInput class, which can be iterated.
23455 68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	94
84362 0760b58526ba Issue #18315: Improve fileinput docs by adding 'bufsize' where missing and Terry Jan Reedy <tjreedy@udel.edu> parents: 73434 diff changeset	95 The parameters are passed to the constructor of the FileInput class.
0760b58526ba Issue #18315: Improve fileinput docs by adding 'bufsize' where missing and Terry Jan Reedy <tjreedy@udel.edu> parents: 73434 diff changeset	96 The returned instance, in addition to being an iterator,
0760b58526ba Issue #18315: Improve fileinput docs by adding 'bufsize' where missing and Terry Jan Reedy <tjreedy@udel.edu> parents: 73434 diff changeset	97 keeps global state for the functions of this module,.
23455 68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	98 """
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	99 global _state
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	100 if _state and _state._file:
43020 907a45df1295 Raise statement normalization in Lib/. Collin Winter <collinw@gmail.com> parents: 42622 diff changeset	101 raise RuntimeError("input() already active")
36596 e57377f0a167 Patch #1215184: FileInput now can be given an opening hook which can Georg Brandl <georg@python.org> parents: 36595 diff changeset	102 _state = FileInput(files, inplace, backup, bufsize, mode, openhook)
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	103 return _state
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	104
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	105 def close():
23455 68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	106 """Close the sequence."""
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	107 global _state
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	108 state = _state
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	109 _state = None
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	110 if state:
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	111 state.close()
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	112
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	113 def nextfile():
23455 68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	114 """
68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	115 Close the current file so that the next iteration will read the first
68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	116 line from the next file (if any); lines not read from the file will
68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	117 not count towards the cumulative line count. The filename is not
68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	118 changed until after the first line of the next file has been read.
68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	119 Before the first line has been read, this function has no effect;
68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	120 it cannot be used to skip the first file. After the last line of the
23521 a90faa5f9417 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 23455 diff changeset	121 last file has been read, this function has no effect.
23455 68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	122 """
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	123 if not _state:
43020 907a45df1295 Raise statement normalization in Lib/. Collin Winter <collinw@gmail.com> parents: 42622 diff changeset	124 raise RuntimeError("no active input()")
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	125 return _state.nextfile()
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	126
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	127 def filename():
23455 68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	128 """
68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	129 Return the name of the file currently being read.
23521 a90faa5f9417 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 23455 diff changeset	130 Before the first line has been read, returns None.
23455 68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	131 """
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	132 if not _state:
43020 907a45df1295 Raise statement normalization in Lib/. Collin Winter <collinw@gmail.com> parents: 42622 diff changeset	133 raise RuntimeError("no active input()")
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	134 return _state.filename()
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	135
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	136 def lineno():
23455 68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	137 """
68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	138 Return the cumulative line number of the line that has just been read.
68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	139 Before the first line has been read, returns 0. After the last line
23521 a90faa5f9417 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 23455 diff changeset	140 of the last file has been read, returns the line number of that line.
23455 68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	141 """
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	142 if not _state:
43020 907a45df1295 Raise statement normalization in Lib/. Collin Winter <collinw@gmail.com> parents: 42622 diff changeset	143 raise RuntimeError("no active input()")
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	144 return _state.lineno()
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	145
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	146 def filelineno():
23455 68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	147 """
68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	148 Return the line number in the current file. Before the first line
68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	149 has been read, returns 0. After the last line of the last file has
23521 a90faa5f9417 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 23455 diff changeset	150 been read, returns the line number of that line within the file.
23455 68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	151 """
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	152 if not _state:
43020 907a45df1295 Raise statement normalization in Lib/. Collin Winter <collinw@gmail.com> parents: 42622 diff changeset	153 raise RuntimeError("no active input()")
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	154 return _state.filelineno()
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	155
36594 781654be55ef Patch #1215184: fileinput now has a fileno() function for getting the Georg Brandl <georg@python.org> parents: 36590 diff changeset	156 def fileno():
781654be55ef Patch #1215184: fileinput now has a fileno() function for getting the Georg Brandl <georg@python.org> parents: 36590 diff changeset	157 """
781654be55ef Patch #1215184: fileinput now has a fileno() function for getting the Georg Brandl <georg@python.org> parents: 36590 diff changeset	158 Return the file number of the current file. When no file is currently
781654be55ef Patch #1215184: fileinput now has a fileno() function for getting the Georg Brandl <georg@python.org> parents: 36590 diff changeset	159 opened, returns -1.
781654be55ef Patch #1215184: fileinput now has a fileno() function for getting the Georg Brandl <georg@python.org> parents: 36590 diff changeset	160 """
781654be55ef Patch #1215184: fileinput now has a fileno() function for getting the Georg Brandl <georg@python.org> parents: 36590 diff changeset	161 if not _state:
43020 907a45df1295 Raise statement normalization in Lib/. Collin Winter <collinw@gmail.com> parents: 42622 diff changeset	162 raise RuntimeError("no active input()")
36594 781654be55ef Patch #1215184: fileinput now has a fileno() function for getting the Georg Brandl <georg@python.org> parents: 36590 diff changeset	163 return _state.fileno()
781654be55ef Patch #1215184: fileinput now has a fileno() function for getting the Georg Brandl <georg@python.org> parents: 36590 diff changeset	164
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	165 def isfirstline():
23455 68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	166 """
68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	167 Returns true the line just read is the first line of its file,
23521 a90faa5f9417 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 23455 diff changeset	168 otherwise returns false.
23455 68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	169 """
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	170 if not _state:
43020 907a45df1295 Raise statement normalization in Lib/. Collin Winter <collinw@gmail.com> parents: 42622 diff changeset	171 raise RuntimeError("no active input()")
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	172 return _state.isfirstline()
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	173
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	174 def isstdin():
23455 68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	175 """
68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	176 Returns true if the last line was read from sys.stdin,
23521 a90faa5f9417 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 23455 diff changeset	177 otherwise returns false.
23455 68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	178 """
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	179 if not _state:
43020 907a45df1295 Raise statement normalization in Lib/. Collin Winter <collinw@gmail.com> parents: 42622 diff changeset	180 raise RuntimeError("no active input()")
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	181 return _state.isstdin()
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	182
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	183 class FileInput:
84362 0760b58526ba Issue #18315: Improve fileinput docs by adding 'bufsize' where missing and Terry Jan Reedy <tjreedy@udel.edu> parents: 73434 diff changeset	184 """FileInput([files[, inplace[, backup[, bufsize, [, mode[, openhook]]]]]])
23521 a90faa5f9417 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 23455 diff changeset	185
23455 68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	186 Class FileInput is the implementation of the module; its methods
36594 781654be55ef Patch #1215184: fileinput now has a fileno() function for getting the Georg Brandl <georg@python.org> parents: 36590 diff changeset	187 filename(), lineno(), fileline(), isfirstline(), isstdin(), fileno(),
781654be55ef Patch #1215184: fileinput now has a fileno() function for getting the Georg Brandl <georg@python.org> parents: 36590 diff changeset	188 nextfile() and close() correspond to the functions of the same name
781654be55ef Patch #1215184: fileinput now has a fileno() function for getting the Georg Brandl <georg@python.org> parents: 36590 diff changeset	189 in the module.
23455 68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	190 In addition it has a readline() method which returns the next
68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	191 input line, and a __getitem__() method which implements the
68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	192 sequence behavior. The sequence must be accessed in strictly
23521 a90faa5f9417 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 23455 diff changeset	193 sequential order; random access and readline() cannot be mixed.
23455 68c776ba5ea5 Added docstrings excerpted from Python Library Reference. Raymond Hettinger <python@rcn.com> parents: 23075 diff changeset	194 """
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	195
54169 904a1bd35e00 Use PEP 8 and true booleans. Georg Brandl <georg@python.org> parents: 43707 diff changeset	196 def __init__(self, files=None, inplace=False, backup="", bufsize=0,
36596 e57377f0a167 Patch #1215184: FileInput now can be given an opening hook which can Georg Brandl <georg@python.org> parents: 36595 diff changeset	197 mode="r", openhook=None):
43577 ace45b361e87 Patch# 1258 by Christian Heimes: kill basestring. Guido van Rossum <guido@python.org> parents: 43020 diff changeset	198 if isinstance(files, str):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	199 files = (files,)
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	200 else:
12340 e2620aab9f2d Implement suggestion from Lawrence Kesteloot in PR#280, to change the Guido van Rossum <guido@python.org> parents: 11387 diff changeset	201 if files is None:
e2620aab9f2d Implement suggestion from Lawrence Kesteloot in PR#280, to change the Guido van Rossum <guido@python.org> parents: 11387 diff changeset	202 files = sys.argv[1:]
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	203 if not files:
12340 e2620aab9f2d Implement suggestion from Lawrence Kesteloot in PR#280, to change the Guido van Rossum <guido@python.org> parents: 11387 diff changeset	204 files = ('-',)
e2620aab9f2d Implement suggestion from Lawrence Kesteloot in PR#280, to change the Guido van Rossum <guido@python.org> parents: 11387 diff changeset	205 else:
e2620aab9f2d Implement suggestion from Lawrence Kesteloot in PR#280, to change the Guido van Rossum <guido@python.org> parents: 11387 diff changeset	206 files = tuple(files)
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	207 self._files = files
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	208 self._inplace = inplace
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	209 self._backup = backup
15746 4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	210 self._bufsize = bufsize or DEFAULT_BUFSIZE
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	211 self._savestdout = None
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	212 self._output = None
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	213 self._filename = None
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	214 self._lineno = 0
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	215 self._filelineno = 0
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	216 self._file = None
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22595 diff changeset	217 self._isstdin = False
8687 fd49ed65cd20 Add missing initializer for self._backupfilename. Due to Ralph Butler. Guido van Rossum <guido@python.org> parents: 7755 diff changeset	218 self._backupfilename = None
15746 4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	219 self._buffer = []
4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	220 self._bufindex = 0
36595 c6fba456227b Patch #1212287: fileinput.input() now has a mode parameter for Georg Brandl <georg@python.org> parents: 36594 diff changeset	221 # restrict mode argument to reading modes
c6fba456227b Patch #1212287: fileinput.input() now has a mode parameter for Georg Brandl <georg@python.org> parents: 36594 diff changeset	222 if mode not in ('r', 'rU', 'U', 'rb'):
c6fba456227b Patch #1212287: fileinput.input() now has a mode parameter for Georg Brandl <georg@python.org> parents: 36594 diff changeset	223 raise ValueError("FileInput opening mode must be one of "
c6fba456227b Patch #1212287: fileinput.input() now has a mode parameter for Georg Brandl <georg@python.org> parents: 36594 diff changeset	224 "'r', 'rU', 'U' and 'rb'")
87448 70bd6f7e013b Issue #15204: Deprecated the 'U' mode in file-like objects. Serhiy Storchaka <storchaka@gmail.com> parents: 84363 diff changeset	225 if 'U' in mode:
70bd6f7e013b Issue #15204: Deprecated the 'U' mode in file-like objects. Serhiy Storchaka <storchaka@gmail.com> parents: 84363 diff changeset	226 import warnings
87520 694e2708b4a8 Issue #15204: Silence and check the 'U' mode deprecation warnings in tests. Serhiy Storchaka <storchaka@gmail.com> parents: 87448 diff changeset	227 warnings.warn("'U' mode is deprecated",
87448 70bd6f7e013b Issue #15204: Deprecated the 'U' mode in file-like objects. Serhiy Storchaka <storchaka@gmail.com> parents: 84363 diff changeset	228 DeprecationWarning, 2)
36595 c6fba456227b Patch #1212287: fileinput.input() now has a mode parameter for Georg Brandl <georg@python.org> parents: 36594 diff changeset	229 self._mode = mode
73165 8e57b5d8f58f Closes #13258: Use callable() built-in in the standard library. Florent Xicluna <florent.xicluna@gmail.com> parents: 63379 diff changeset	230 if openhook:
8e57b5d8f58f Closes #13258: Use callable() built-in in the standard library. Florent Xicluna <florent.xicluna@gmail.com> parents: 63379 diff changeset	231 if inplace:
8e57b5d8f58f Closes #13258: Use callable() built-in in the standard library. Florent Xicluna <florent.xicluna@gmail.com> parents: 63379 diff changeset	232 raise ValueError("FileInput cannot use an opening hook in inplace mode")
8e57b5d8f58f Closes #13258: Use callable() built-in in the standard library. Florent Xicluna <florent.xicluna@gmail.com> parents: 63379 diff changeset	233 if not callable(openhook):
8e57b5d8f58f Closes #13258: Use callable() built-in in the standard library. Florent Xicluna <florent.xicluna@gmail.com> parents: 63379 diff changeset	234 raise ValueError("FileInput openhook must be callable")
36596 e57377f0a167 Patch #1215184: FileInput now can be given an opening hook which can Georg Brandl <georg@python.org> parents: 36595 diff changeset	235 self._openhook = openhook
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	236
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	237 def __del__(self):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	238 self.close()
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	239
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	240 def close(self):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	241 self.nextfile()
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	242 self._files = ()
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	243
63379 ab89d0f52a7f #1286: allow using fileinput.FileInput as context manager. Georg Brandl <georg@python.org> parents: 54169 diff changeset	244 def __enter__(self):
ab89d0f52a7f #1286: allow using fileinput.FileInput as context manager. Georg Brandl <georg@python.org> parents: 54169 diff changeset	245 return self
ab89d0f52a7f #1286: allow using fileinput.FileInput as context manager. Georg Brandl <georg@python.org> parents: 54169 diff changeset	246
ab89d0f52a7f #1286: allow using fileinput.FileInput as context manager. Georg Brandl <georg@python.org> parents: 54169 diff changeset	247 def __exit__(self, type, value, traceback):
ab89d0f52a7f #1286: allow using fileinput.FileInput as context manager. Georg Brandl <georg@python.org> parents: 54169 diff changeset	248 self.close()
ab89d0f52a7f #1286: allow using fileinput.FileInput as context manager. Georg Brandl <georg@python.org> parents: 54169 diff changeset	249
22595 204d46fc54f6 Implement iterator protocol. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20654 diff changeset	250 def __iter__(self):
204d46fc54f6 Implement iterator protocol. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20654 diff changeset	251 return self
204d46fc54f6 Implement iterator protocol. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20654 diff changeset	252
41501 0c5019afc55b PEP 3114: rename .next() to .__next__() and add next() builtin. Georg Brandl <georg@python.org> parents: 40775 diff changeset	253 def __next__(self):
15746 4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	254 try:
4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	255 line = self._buffer[self._bufindex]
4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	256 except IndexError:
4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	257 pass
4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	258 else:
4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	259 self._bufindex += 1
4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	260 self._lineno += 1
4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	261 self._filelineno += 1
4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	262 return line
22595 204d46fc54f6 Implement iterator protocol. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20654 diff changeset	263 line = self.readline()
204d46fc54f6 Implement iterator protocol. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20654 diff changeset	264 if not line:
204d46fc54f6 Implement iterator protocol. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20654 diff changeset	265 raise StopIteration
204d46fc54f6 Implement iterator protocol. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20654 diff changeset	266 return line
23075 b7e87732f6ab Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 22867 diff changeset	267
22595 204d46fc54f6 Implement iterator protocol. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20654 diff changeset	268 def __getitem__(self, i):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	269 if i != self._lineno:
43020 907a45df1295 Raise statement normalization in Lib/. Collin Winter <collinw@gmail.com> parents: 42622 diff changeset	270 raise RuntimeError("accessing lines out of order")
22595 204d46fc54f6 Implement iterator protocol. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20654 diff changeset	271 try:
41501 0c5019afc55b PEP 3114: rename .next() to .__next__() and add next() builtin. Georg Brandl <georg@python.org> parents: 40775 diff changeset	272 return self.__next__()
22595 204d46fc54f6 Implement iterator protocol. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20654 diff changeset	273 except StopIteration:
43020 907a45df1295 Raise statement normalization in Lib/. Collin Winter <collinw@gmail.com> parents: 42622 diff changeset	274 raise IndexError("end of input reached")
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	275
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	276 def nextfile(self):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	277 savestdout = self._savestdout
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	278 self._savestdout = 0
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	279 if savestdout:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	280 sys.stdout = savestdout
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	281
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	282 output = self._output
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	283 self._output = 0
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	284 if output:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	285 output.close()
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	286
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	287 file = self._file
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	288 self._file = 0
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	289 if file and not self._isstdin:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	290 file.close()
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	291
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	292 backupfilename = self._backupfilename
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	293 self._backupfilename = 0
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	294 if backupfilename and not self._backup:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	295 try: os.unlink(backupfilename)
24807 685cd52c4c43 tightening up a few except: clauses Skip Montanaro <skip@pobox.com> parents: 23697 diff changeset	296 except OSError: pass
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	297
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22595 diff changeset	298 self._isstdin = False
15746 4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	299 self._buffer = []
4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	300 self._bufindex = 0
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	301
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	302 def readline(self):
15746 4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	303 try:
4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	304 line = self._buffer[self._bufindex]
4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	305 except IndexError:
4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	306 pass
4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	307 else:
4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	308 self._bufindex += 1
4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	309 self._lineno += 1
4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	310 self._filelineno += 1
4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	311 return line
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	312 if not self._file:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	313 if not self._files:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	314 return ""
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	315 self._filename = self._files[0]
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	316 self._files = self._files[1:]
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	317 self._filelineno = 0
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	318 self._file = None
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22595 diff changeset	319 self._isstdin = False
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	320 self._backupfilename = 0
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	321 if self._filename == '-':
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	322 self._filename = '<stdin>'
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	323 self._file = sys.stdin
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22595 diff changeset	324 self._isstdin = True
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	325 else:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	326 if self._inplace:
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	327 self._backupfilename = (
42622 4d2aa4bfb2d6 Remove RISCOS support Skip Montanaro <skip@pobox.com> parents: 41824 diff changeset	328 self._filename + (self._backup or ".bak"))
80932 47f98a550d42 Issue #16706: get rid of os.error Andrew Svetlov <andrew.svetlov@gmail.com> parents: 73434 diff changeset	329 try:
47f98a550d42 Issue #16706: get rid of os.error Andrew Svetlov <andrew.svetlov@gmail.com> parents: 73434 diff changeset	330 os.unlink(self._backupfilename)
47f98a550d42 Issue #16706: get rid of os.error Andrew Svetlov <andrew.svetlov@gmail.com> parents: 73434 diff changeset	331 except OSError:
47f98a550d42 Issue #16706: get rid of os.error Andrew Svetlov <andrew.svetlov@gmail.com> parents: 73434 diff changeset	332 pass
81039 7d69d04522e3 Replace IOError with OSError (#16715) Andrew Svetlov <andrew.svetlov@gmail.com> parents: 80932 diff changeset	333 # The next few lines may raise OSError
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	334 os.rename(self._filename, self._backupfilename)
36595 c6fba456227b Patch #1212287: fileinput.input() now has a mode parameter for Georg Brandl <georg@python.org> parents: 36594 diff changeset	335 self._file = open(self._backupfilename, self._mode)
11387 019cd21c8c9f Fix for PR#111: when using the inplace option, give the new file the Guido van Rossum <guido@python.org> parents: 8687 diff changeset	336 try:
23697 c0e8c07ae1d6 Replace obsolete stat module constants with Walter Dörwald <walter@livinglogic.de> parents: 23521 diff changeset	337 perm = os.fstat(self._file.fileno()).st_mode
24807 685cd52c4c43 tightening up a few except: clauses Skip Montanaro <skip@pobox.com> parents: 23697 diff changeset	338 except OSError:
11387 019cd21c8c9f Fix for PR#111: when using the inplace option, give the new file the Guido van Rossum <guido@python.org> parents: 8687 diff changeset	339 self._output = open(self._filename, "w")
019cd21c8c9f Fix for PR#111: when using the inplace option, give the new file the Guido van Rossum <guido@python.org> parents: 8687 diff changeset	340 else:
43707 d8f7442b8cae Patch 1341 by Amaury Forgeot d'Arc. Guido van Rossum <guido@python.org> parents: 43577 diff changeset	341 mode = os.O_CREAT \| os.O_WRONLY \| os.O_TRUNC
d8f7442b8cae Patch 1341 by Amaury Forgeot d'Arc. Guido van Rossum <guido@python.org> parents: 43577 diff changeset	342 if hasattr(os, 'O_BINARY'):
d8f7442b8cae Patch 1341 by Amaury Forgeot d'Arc. Guido van Rossum <guido@python.org> parents: 43577 diff changeset	343 mode \|= os.O_BINARY
d8f7442b8cae Patch 1341 by Amaury Forgeot d'Arc. Guido van Rossum <guido@python.org> parents: 43577 diff changeset	344
d8f7442b8cae Patch 1341 by Amaury Forgeot d'Arc. Guido van Rossum <guido@python.org> parents: 43577 diff changeset	345 fd = os.open(self._filename, mode, perm)
11387 019cd21c8c9f Fix for PR#111: when using the inplace option, give the new file the Guido van Rossum <guido@python.org> parents: 8687 diff changeset	346 self._output = os.fdopen(fd, "w")
019cd21c8c9f Fix for PR#111: when using the inplace option, give the new file the Guido van Rossum <guido@python.org> parents: 8687 diff changeset	347 try:
27166 0cadc29180e6 Test that chmod() actually exists before calling it (it doesn't on MacOS9). Jack Jansen <jack.jansen@cwi.nl> parents: 24807 diff changeset	348 if hasattr(os, 'chmod'):
0cadc29180e6 Test that chmod() actually exists before calling it (it doesn't on MacOS9). Jack Jansen <jack.jansen@cwi.nl> parents: 24807 diff changeset	349 os.chmod(self._filename, perm)
24807 685cd52c4c43 tightening up a few except: clauses Skip Montanaro <skip@pobox.com> parents: 23697 diff changeset	350 except OSError:
11387 019cd21c8c9f Fix for PR#111: when using the inplace option, give the new file the Guido van Rossum <guido@python.org> parents: 8687 diff changeset	351 pass
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	352 self._savestdout = sys.stdout
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	353 sys.stdout = self._output
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	354 else:
81039 7d69d04522e3 Replace IOError with OSError (#16715) Andrew Svetlov <andrew.svetlov@gmail.com> parents: 80932 diff changeset	355 # This may raise OSError
36596 e57377f0a167 Patch #1215184: FileInput now can be given an opening hook which can Georg Brandl <georg@python.org> parents: 36595 diff changeset	356 if self._openhook:
e57377f0a167 Patch #1215184: FileInput now can be given an opening hook which can Georg Brandl <georg@python.org> parents: 36595 diff changeset	357 self._file = self._openhook(self._filename, self._mode)
e57377f0a167 Patch #1215184: FileInput now can be given an opening hook which can Georg Brandl <georg@python.org> parents: 36595 diff changeset	358 else:
e57377f0a167 Patch #1215184: FileInput now can be given an opening hook which can Georg Brandl <georg@python.org> parents: 36595 diff changeset	359 self._file = open(self._filename, self._mode)
15746 4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	360 self._buffer = self._file.readlines(self._bufsize)
4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	361 self._bufindex = 0
4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	362 if not self._buffer:
4dbbf322a9df Speed it up by using readlines(sizehint). It's still slower than Guido van Rossum <guido@python.org> parents: 12340 diff changeset	363 self.nextfile()
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	364 # Recursive call
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	365 return self.readline()
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	366
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	367 def filename(self):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	368 return self._filename
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	369
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	370 def lineno(self):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	371 return self._lineno
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	372
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	373 def filelineno(self):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	374 return self._filelineno
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	375
36594 781654be55ef Patch #1215184: fileinput now has a fileno() function for getting the Georg Brandl <georg@python.org> parents: 36590 diff changeset	376 def fileno(self):
781654be55ef Patch #1215184: fileinput now has a fileno() function for getting the Georg Brandl <georg@python.org> parents: 36590 diff changeset	377 if self._file:
781654be55ef Patch #1215184: fileinput now has a fileno() function for getting the Georg Brandl <georg@python.org> parents: 36590 diff changeset	378 try:
781654be55ef Patch #1215184: fileinput now has a fileno() function for getting the Georg Brandl <georg@python.org> parents: 36590 diff changeset	379 return self._file.fileno()
781654be55ef Patch #1215184: fileinput now has a fileno() function for getting the Georg Brandl <georg@python.org> parents: 36590 diff changeset	380 except ValueError:
781654be55ef Patch #1215184: fileinput now has a fileno() function for getting the Georg Brandl <georg@python.org> parents: 36590 diff changeset	381 return -1
781654be55ef Patch #1215184: fileinput now has a fileno() function for getting the Georg Brandl <georg@python.org> parents: 36590 diff changeset	382 else:
781654be55ef Patch #1215184: fileinput now has a fileno() function for getting the Georg Brandl <georg@python.org> parents: 36590 diff changeset	383 return -1
781654be55ef Patch #1215184: fileinput now has a fileno() function for getting the Georg Brandl <georg@python.org> parents: 36590 diff changeset	384
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	385 def isfirstline(self):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	386 return self._filelineno == 1
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	387
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	388 def isstdin(self):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	389 return self._isstdin
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	390
36596 e57377f0a167 Patch #1215184: FileInput now can be given an opening hook which can Georg Brandl <georg@python.org> parents: 36595 diff changeset	391
e57377f0a167 Patch #1215184: FileInput now can be given an opening hook which can Georg Brandl <georg@python.org> parents: 36595 diff changeset	392 def hook_compressed(filename, mode):
e57377f0a167 Patch #1215184: FileInput now can be given an opening hook which can Georg Brandl <georg@python.org> parents: 36595 diff changeset	393 ext = os.path.splitext(filename)[1]
e57377f0a167 Patch #1215184: FileInput now can be given an opening hook which can Georg Brandl <georg@python.org> parents: 36595 diff changeset	394 if ext == '.gz':
e57377f0a167 Patch #1215184: FileInput now can be given an opening hook which can Georg Brandl <georg@python.org> parents: 36595 diff changeset	395 import gzip
e57377f0a167 Patch #1215184: FileInput now can be given an opening hook which can Georg Brandl <georg@python.org> parents: 36595 diff changeset	396 return gzip.open(filename, mode)
e57377f0a167 Patch #1215184: FileInput now can be given an opening hook which can Georg Brandl <georg@python.org> parents: 36595 diff changeset	397 elif ext == '.bz2':
e57377f0a167 Patch #1215184: FileInput now can be given an opening hook which can Georg Brandl <georg@python.org> parents: 36595 diff changeset	398 import bz2
e57377f0a167 Patch #1215184: FileInput now can be given an opening hook which can Georg Brandl <georg@python.org> parents: 36595 diff changeset	399 return bz2.BZ2File(filename, mode)
e57377f0a167 Patch #1215184: FileInput now can be given an opening hook which can Georg Brandl <georg@python.org> parents: 36595 diff changeset	400 else:
e57377f0a167 Patch #1215184: FileInput now can be given an opening hook which can Georg Brandl <georg@python.org> parents: 36595 diff changeset	401 return open(filename, mode)
e57377f0a167 Patch #1215184: FileInput now can be given an opening hook which can Georg Brandl <georg@python.org> parents: 36595 diff changeset	402
e57377f0a167 Patch #1215184: FileInput now can be given an opening hook which can Georg Brandl <georg@python.org> parents: 36595 diff changeset	403
e57377f0a167 Patch #1215184: FileInput now can be given an opening hook which can Georg Brandl <georg@python.org> parents: 36595 diff changeset	404 def hook_encoded(encoding):
e57377f0a167 Patch #1215184: FileInput now can be given an opening hook which can Georg Brandl <georg@python.org> parents: 36595 diff changeset	405 def openhook(filename, mode):
73434 c2b3e8b437a4 fileinput: replace this last occurence of codecs.open with builtins.open. Florent Xicluna <florent.xicluna@gmail.com> parents: 73165 diff changeset	406 return open(filename, mode, encoding=encoding)
36596 e57377f0a167 Patch #1215184: FileInput now can be given an opening hook which can Georg Brandl <georg@python.org> parents: 36595 diff changeset	407 return openhook
e57377f0a167 Patch #1215184: FileInput now can be given an opening hook which can Georg Brandl <georg@python.org> parents: 36595 diff changeset	408
e57377f0a167 Patch #1215184: FileInput now can be given an opening hook which can Georg Brandl <georg@python.org> parents: 36595 diff changeset	409
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	410 def _test():
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	411 import getopt
54169 904a1bd35e00 Use PEP 8 and true booleans. Georg Brandl <georg@python.org> parents: 43707 diff changeset	412 inplace = False
904a1bd35e00 Use PEP 8 and true booleans. Georg Brandl <georg@python.org> parents: 43707 diff changeset	413 backup = False
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	414 opts, args = getopt.getopt(sys.argv[1:], "ib:")
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	415 for o, a in opts:
54169 904a1bd35e00 Use PEP 8 and true booleans. Georg Brandl <georg@python.org> parents: 43707 diff changeset	416 if o == '-i': inplace = True
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	417 if o == '-b': backup = a
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	418 for line in input(args, inplace=inplace, backup=backup):
7755 fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	419 if line[-1:] == '\n': line = line[:-1]
fb4b4d069cc7 Mass check-in after untabifying all files that need it. Guido van Rossum <guido@python.org> parents: 6620 diff changeset	420 if line[-1:] == '\r': line = line[:-1]
40775 4cdf21a0dbbc Fix most trivially-findable print statements. Guido van Rossum <guido@python.org> parents: 36608 diff changeset	421 print("%d: %s[%d]%s %s" % (lineno(), filename(), filelineno(),
4cdf21a0dbbc Fix most trivially-findable print statements. Guido van Rossum <guido@python.org> parents: 36608 diff changeset	422 isfirstline() and "*" or "", line))
4cdf21a0dbbc Fix most trivially-findable print statements. Guido van Rossum <guido@python.org> parents: 36608 diff changeset	423 print("%d: %s[%d]" % (lineno(), filename(), filelineno()))
6620 00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	424
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	425 if __name__ == '__main__':
00b1b77c4177 A new standard module, as discussed on comp.lang.python, to simplify Guido van Rossum <guido@python.org> parents: diff changeset	426 _test()

Mercurial > cpython-lru_cache-weakref

annotate Lib/fileinput.py @ 87690:66c1c9f32567 default tip