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

annotate Lib/pkgutil.py @ 51749:1408feec0084 3.0

Merged revisions 69798 via svnmerge from svn+ssh://pythondev@svn.python.org/python/branches/py3k ................ r69798 | benjamin.peterson | 2009-02-19 22:02:38 -0600 (Thu, 19 Feb 2009) | 13 lines Merged revisions 69769,69776 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r69769 | georg.brandl | 2009-02-19 02:30:06 -0600 (Thu, 19 Feb 2009) | 1 line #5310, #3558: fix operator precedence table. ........ r69776 | georg.brandl | 2009-02-19 10:34:51 -0600 (Thu, 19 Feb 2009) | 2 lines #5317: update IronPython URL. ........ ................

author	Benjamin Peterson <benjamin@python.org>
date	Fri, 20 Feb 2009 04:05:32 +0000
parents	beb7abcd6c01
children	627db59031be

rev	line source
26753 7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	1 """Utilities to support packages."""
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	2
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	3 # NOTE: This module must remain compatible with Python 2.3, as it is shared
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	4 # by setuptools for distribution with Python 2.3 and up.
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	5
26753 7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	6 import os
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	7 import sys
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	8 import imp
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	9 import os.path
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	10 from types import ModuleType
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	11
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	12 __all__ = [
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	13 'get_importer', 'iter_importers', 'get_loader', 'find_loader',
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	14 'walk_packages', 'iter_modules',
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	15 'ImpImporter', 'ImpLoader', 'read_code', 'extend_path',
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	16 ]
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	17
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	18 def read_code(stream):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	19 # This helper is needed in order for the PEP 302 emulation to
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	20 # correctly handle compiled files
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	21 import marshal
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	22
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	23 magic = stream.read(4)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	24 if magic != imp.get_magic():
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	25 return None
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	26
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	27 stream.read(4) # Skip timestamp
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	28 return marshal.load(stream)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	29
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	30
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	31 def simplegeneric(func):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	32 """Make a trivial single-dispatch generic function"""
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	33 registry = {}
38453 29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	34 def wrapper(args, *kw):
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	35 ob = args[0]
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	36 try:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	37 cls = ob.__class__
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	38 except AttributeError:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	39 cls = type(ob)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	40 try:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	41 mro = cls.__mro__
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	42 except AttributeError:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	43 try:
38453 29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	44 class cls(cls, object):
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	45 pass
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	46 mro = cls.__mro__[1:]
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	47 except TypeError:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	48 mro = object, # must be an ExtensionClass or some such :(
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	49 for t in mro:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	50 if t in registry:
38453 29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	51 return registry[t](args, *kw)
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	52 else:
38453 29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	53 return func(args, *kw)
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	54 try:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	55 wrapper.__name__ = func.__name__
38453 29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	56 except (TypeError, AttributeError):
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	57 pass # Python 2.3 doesn't allow functions to be renamed
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	58
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	59 def register(typ, func=None):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	60 if func is None:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	61 return lambda f: register(typ, f)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	62 registry[typ] = func
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	63 return func
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	64
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	65 wrapper.__dict__ = func.__dict__
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	66 wrapper.__doc__ = func.__doc__
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	67 wrapper.register = register
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	68 return wrapper
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	69
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	70
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	71 def walk_packages(path=None, prefix='', onerror=None):
39442 654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	72 """Yields (module_loader, name, ispkg) for all modules recursively
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	73 on path, or, if path is None, all accessible modules.
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	74
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	75 'path' should be either None or a list of paths to look for
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	76 modules in.
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	77
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	78 'prefix' is a string to output on the front of every module name
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	79 on output.
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	80
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	81 Note that this function must import all packages (NOT all
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	82 modules!) on the given path, in order to access the __path__
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	83 attribute to find submodules.
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	84
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	85 'onerror' is a function which gets called with one argument (the
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	86 name of the package which was being imported) if any exception
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	87 occurs while trying to import a package. If no onerror function is
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	88 supplied, ImportErrors are caught and ignored, while all other
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	89 exceptions are propagated, terminating the search.
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	90
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	91 Examples:
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	92
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	93 # list all modules python can access
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	94 walk_packages()
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	95
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	96 # list all submodules of ctypes
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	97 walk_packages(ctypes.__path__, ctypes.__name__+'.')
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	98 """
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	99
38453 29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	100 def seen(p, m={}):
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	101 if p in m:
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	102 return True
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	103 m[p] = True
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	104
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	105 for importer, name, ispkg in iter_modules(path, prefix):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	106 yield importer, name, ispkg
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	107
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	108 if ispkg:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	109 try:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	110 __import__(name)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	111 except ImportError:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	112 if onerror is not None:
39442 654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	113 onerror(name)
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	114 except Exception:
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	115 if onerror is not None:
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	116 onerror(name)
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	117 else:
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	118 raise
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	119 else:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	120 path = getattr(sys.modules[name], '__path__', None) or []
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	121
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	122 # don't traverse path items we've seen before
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	123 path = [p for p in path if not seen(p)]
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	124
39442 654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	125 for item in walk_packages(path, name+'.', onerror):
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	126 yield item
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	127
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	128
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	129 def iter_modules(path=None, prefix=''):
39442 654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	130 """Yields (module_loader, name, ispkg) for all submodules on path,
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	131 or, if path is None, all top-level modules on sys.path.
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	132
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	133 'path' should be either None or a list of paths to look for
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	134 modules in.
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	135
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	136 'prefix' is a string to output on the front of every module name
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	137 on output.
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	138 """
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	139
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	140 if path is None:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	141 importers = iter_importers()
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	142 else:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	143 importers = map(get_importer, path)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	144
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	145 yielded = {}
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	146 for i in importers:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	147 for name, ispkg in iter_importer_modules(i, prefix):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	148 if name not in yielded:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	149 yielded[name] = 1
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	150 yield i, name, ispkg
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	151
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	152
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	153 #@simplegeneric
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	154 def iter_importer_modules(importer, prefix=''):
38453 29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	155 if not hasattr(importer, 'iter_modules'):
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	156 return []
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	157 return importer.iter_modules(prefix)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	158
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	159 iter_importer_modules = simplegeneric(iter_importer_modules)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	160
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	161
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	162 class ImpImporter:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	163 """PEP 302 Importer that wraps Python's "classic" import algorithm
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	164
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	165 ImpImporter(dirname) produces a PEP 302 importer that searches that
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	166 directory. ImpImporter(None) produces a PEP 302 importer that searches
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	167 the current sys.path, plus any modules that are frozen or built-in.
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	168
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	169 Note that ImpImporter does not currently support being used by placement
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	170 on sys.meta_path.
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	171 """
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	172
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	173 def __init__(self, path=None):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	174 self.path = path
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	175
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	176 def find_module(self, fullname, path=None):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	177 # Note: we ignore 'path' argument since it is only used via meta_path
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	178 subname = fullname.split(".")[-1]
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	179 if subname != fullname and self.path is None:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	180 return None
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	181 if self.path is None:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	182 path = None
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	183 else:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	184 path = [os.path.realpath(self.path)]
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	185 try:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	186 file, filename, etc = imp.find_module(subname, path)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	187 except ImportError:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	188 return None
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	189 return ImpLoader(fullname, file, filename, etc)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	190
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	191 def iter_modules(self, prefix=''):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	192 if self.path is None or not os.path.isdir(self.path):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	193 return
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	194
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	195 yielded = {}
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	196 import inspect
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	197
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	198 filenames = os.listdir(self.path)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	199 filenames.sort() # handle packages before same-named modules
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	200
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	201 for fn in filenames:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	202 modname = inspect.getmodulename(fn)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	203 if modname=='__init__' or modname in yielded:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	204 continue
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	205
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	206 path = os.path.join(self.path, fn)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	207 ispkg = False
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	208
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	209 if not modname and os.path.isdir(path) and '.' not in fn:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	210 modname = fn
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	211 for fn in os.listdir(path):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	212 subname = inspect.getmodulename(fn)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	213 if subname=='__init__':
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	214 ispkg = True
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	215 break
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	216 else:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	217 continue # not a package
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	218
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	219 if modname and '.' not in modname:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	220 yielded[modname] = 1
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	221 yield prefix + modname, ispkg
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	222
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	223
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	224 class ImpLoader:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	225 """PEP 302 Loader that wraps Python's "classic" import algorithm
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	226 """
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	227 code = source = None
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	228
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	229 def __init__(self, fullname, file, filename, etc):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	230 self.file = file
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	231 self.filename = filename
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	232 self.fullname = fullname
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	233 self.etc = etc
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	234
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	235 def load_module(self, fullname):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	236 self._reopen()
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	237 try:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	238 mod = imp.load_module(fullname, self.file, self.filename, self.etc)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	239 finally:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	240 if self.file:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	241 self.file.close()
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	242 # Note: we don't set __loader__ because we want the module to look
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	243 # normal; i.e. this is just a wrapper for standard import machinery
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	244 return mod
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	245
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	246 def get_data(self, pathname):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	247 return open(pathname, "rb").read()
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	248
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	249 def _reopen(self):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	250 if self.file and self.file.closed:
39442 654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	251 mod_type = self.etc[2]
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	252 if mod_type==imp.PY_SOURCE:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	253 self.file = open(self.filename, 'rU')
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	254 elif mod_type in (imp.PY_COMPILED, imp.C_EXTENSION):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	255 self.file = open(self.filename, 'rb')
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	256
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	257 def _fix_name(self, fullname):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	258 if fullname is None:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	259 fullname = self.fullname
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	260 elif fullname != self.fullname:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	261 raise ImportError("Loader for module %s cannot handle "
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	262 "module %s" % (self.fullname, fullname))
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	263 return fullname
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	264
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	265 def is_package(self, fullname):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	266 fullname = self._fix_name(fullname)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	267 return self.etc[2]==imp.PKG_DIRECTORY
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	268
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	269 def get_code(self, fullname=None):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	270 fullname = self._fix_name(fullname)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	271 if self.code is None:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	272 mod_type = self.etc[2]
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	273 if mod_type==imp.PY_SOURCE:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	274 source = self.get_source(fullname)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	275 self.code = compile(source, self.filename, 'exec')
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	276 elif mod_type==imp.PY_COMPILED:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	277 self._reopen()
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	278 try:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	279 self.code = read_code(self.file)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	280 finally:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	281 self.file.close()
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	282 elif mod_type==imp.PKG_DIRECTORY:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	283 self.code = self._get_delegate().get_code()
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	284 return self.code
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	285
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	286 def get_source(self, fullname=None):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	287 fullname = self._fix_name(fullname)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	288 if self.source is None:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	289 mod_type = self.etc[2]
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	290 if mod_type==imp.PY_SOURCE:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	291 self._reopen()
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	292 try:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	293 self.source = self.file.read()
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	294 finally:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	295 self.file.close()
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	296 elif mod_type==imp.PY_COMPILED:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	297 if os.path.exists(self.filename[:-1]):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	298 f = open(self.filename[:-1], 'rU')
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	299 self.source = f.read()
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	300 f.close()
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	301 elif mod_type==imp.PKG_DIRECTORY:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	302 self.source = self._get_delegate().get_source()
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	303 return self.source
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	304
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	305
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	306 def _get_delegate(self):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	307 return ImpImporter(self.filename).find_module('__init__')
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	308
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	309 def get_filename(self, fullname=None):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	310 fullname = self._fix_name(fullname)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	311 mod_type = self.etc[2]
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	312 if self.etc[2]==imp.PKG_DIRECTORY:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	313 return self._get_delegate().get_filename()
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	314 elif self.etc[2] in (imp.PY_SOURCE, imp.PY_COMPILED, imp.C_EXTENSION):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	315 return self.filename
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	316 return None
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	317
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	318
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	319 try:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	320 import zipimport
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	321 from zipimport import zipimporter
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	322
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	323 def iter_zipimport_modules(importer, prefix=''):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	324 dirlist = zipimport._zip_directory_cache[importer.archive].keys()
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	325 dirlist.sort()
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	326 _prefix = importer.prefix
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	327 plen = len(_prefix)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	328 yielded = {}
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	329 import inspect
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	330 for fn in dirlist:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	331 if not fn.startswith(_prefix):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	332 continue
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	333
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	334 fn = fn[plen:].split(os.sep)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	335
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	336 if len(fn)==2 and fn[1].startswith('__init__.py'):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	337 if fn[0] not in yielded:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	338 yielded[fn[0]] = 1
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	339 yield fn[0], True
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	340
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	341 if len(fn)!=1:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	342 continue
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	343
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	344 modname = inspect.getmodulename(fn[0])
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	345 if modname=='__init__':
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	346 continue
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	347
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	348 if modname and '.' not in modname and modname not in yielded:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	349 yielded[modname] = 1
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	350 yield prefix + modname, False
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	351
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	352 iter_importer_modules.register(zipimporter, iter_zipimport_modules)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	353
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	354 except ImportError:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	355 pass
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	356
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	357
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	358 def get_importer(path_item):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	359 """Retrieve a PEP 302 importer for the given path item
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	360
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	361 The returned importer is cached in sys.path_importer_cache
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	362 if it was newly created by a path hook.
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	363
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	364 If there is no importer, a wrapper around the basic import
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	365 machinery is returned. This wrapper is never inserted into
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	366 the importer cache (None is inserted instead).
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	367
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	368 The cache (or part of it) can be cleared manually if a
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	369 rescan of sys.path_hooks is necessary.
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	370 """
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	371 try:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	372 importer = sys.path_importer_cache[path_item]
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	373 except KeyError:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	374 for path_hook in sys.path_hooks:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	375 try:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	376 importer = path_hook(path_item)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	377 break
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	378 except ImportError:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	379 pass
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	380 else:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	381 importer = None
38453 29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	382 sys.path_importer_cache.setdefault(path_item, importer)
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	383
39442 654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	384 if importer is None:
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	385 try:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	386 importer = ImpImporter(path_item)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	387 except ImportError:
38453 29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	388 importer = None
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	389 return importer
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	390
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	391
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	392 def iter_importers(fullname=""):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	393 """Yield PEP 302 importers for the given module name
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	394
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	395 If fullname contains a '.', the importers will be for the package
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	396 containing fullname, otherwise they will be importers for sys.meta_path,
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	397 sys.path, and Python's "classic" import machinery, in that order. If
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	398 the named module is in a package, that package is imported as a side
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	399 effect of invoking this function.
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	400
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	401 Non PEP 302 mechanisms (e.g. the Windows registry) used by the
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	402 standard import machinery to find files in alternative locations
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	403 are partially supported, but are searched AFTER sys.path. Normally,
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	404 these locations are searched BEFORE sys.path, preventing sys.path
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	405 entries from shadowing them.
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	406
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	407 For this to cause a visible difference in behaviour, there must
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	408 be a module or package name that is accessible via both sys.path
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	409 and one of the non PEP 302 file system mechanisms. In this case,
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	410 the emulation will find the former version, while the builtin
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	411 import mechanism will find the latter.
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	412
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	413 Items of the following types can be affected by this discrepancy:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	414 imp.C_EXTENSION, imp.PY_SOURCE, imp.PY_COMPILED, imp.PKG_DIRECTORY
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	415 """
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	416 if fullname.startswith('.'):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	417 raise ImportError("Relative module names not supported")
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	418 if '.' in fullname:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	419 # Get the containing package's __path__
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	420 pkg = '.'.join(fullname.split('.')[:-1])
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	421 if pkg not in sys.modules:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	422 __import__(pkg)
38453 29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	423 path = getattr(sys.modules[pkg], '__path__', None) or []
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	424 else:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	425 for importer in sys.meta_path:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	426 yield importer
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	427 path = sys.path
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	428 for item in path:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	429 yield get_importer(item)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	430 if '.' not in fullname:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	431 yield ImpImporter()
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	432
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	433 def get_loader(module_or_name):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	434 """Get a PEP 302 "loader" object for module_or_name
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	435
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	436 If the module or package is accessible via the normal import
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	437 mechanism, a wrapper around the relevant part of that machinery
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	438 is returned. Returns None if the module cannot be found or imported.
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	439 If the named module is not already imported, its containing package
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	440 (if any) is imported, in order to establish the package __path__.
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	441
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	442 This function uses iter_importers(), and is thus subject to the same
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	443 limitations regarding platform-specific special import locations such
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	444 as the Windows registry.
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	445 """
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	446 if module_or_name in sys.modules:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	447 module_or_name = sys.modules[module_or_name]
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	448 if isinstance(module_or_name, ModuleType):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	449 module = module_or_name
38453 29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	450 loader = getattr(module, '__loader__', None)
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	451 if loader is not None:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	452 return loader
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	453 fullname = module.__name__
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	454 else:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	455 fullname = module_or_name
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	456 return find_loader(fullname)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	457
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	458 def find_loader(fullname):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	459 """Find a PEP 302 "loader" object for fullname
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	460
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	461 If fullname contains dots, path must be the containing package's __path__.
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	462 Returns None if the module cannot be found or imported. This function uses
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	463 iter_importers(), and is thus subject to the same limitations regarding
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	464 platform-specific special import locations such as the Windows registry.
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	465 """
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	466 for importer in iter_importers(fullname):
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	467 loader = importer.find_module(fullname)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	468 if loader is not None:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	469 return loader
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	470
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	471 return None
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 30448 diff changeset	472
26753 7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	473
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	474 def extend_path(path, name):
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	475 """Extend a package's path.
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	476
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	477 Intended use is to place the following code in a package's __init__.py:
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	478
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	479 from pkgutil import extend_path
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	480 __path__ = extend_path(__path__, __name__)
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	481
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	482 This will add to the package's __path__ all subdirectories of
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	483 directories on sys.path named after the package. This is useful
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	484 if one wants to distribute different parts of a single logical
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	485 package as multiple directories.
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	486
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	487 It also looks for .pkg files beginning where matches the name
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	488 argument. This feature is similar to *.pth files (see site.py),
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	489 except that it doesn't special-case lines starting with 'import'.
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	490 A *.pkg file is trusted at face value: apart from checking for
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	491 duplicates, all entries found in a *.pkg file are added to the
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	492 path, regardless of whether they are exist the filesystem. (This
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	493 is a feature.)
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	494
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	495 If the input path is not a list (as is the case for frozen
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	496 packages) it is returned unchanged. The input path is not
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	497 modified; an extended copy is returned. Items are only appended
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	498 to the copy at the end.
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	499
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	500 It is assumed that sys.path is a sequence. Items of sys.path that
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	501 are not (unicode or 8-bit) strings referring to existing
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	502 directories are ignored. Unicode items of sys.path that cause
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	503 errors when used as filenames may cause this function to raise an
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	504 exception (in line with os.path.isdir() behavior).
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	505 """
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	506
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	507 if not isinstance(path, list):
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	508 # This could happen e.g. when this is called from inside a
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	509 # frozen package. Return the path unchanged in that case.
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	510 return path
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	511
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	512 pname = os.path.join(*name.split('.')) # Reconstitute as relative path
42622 4d2aa4bfb2d6 Remove RISCOS support Skip Montanaro <skip@pobox.com> parents: 40587 diff changeset	513 sname_pkg = name + ".pkg"
4d2aa4bfb2d6 Remove RISCOS support Skip Montanaro <skip@pobox.com> parents: 40587 diff changeset	514 init_py = "__init__.py"
26753 7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	515
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	516 path = path[:] # Start with a copy of the existing path
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	517
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	518 for dir in sys.path:
43577 ace45b361e87 Patch# 1258 by Christian Heimes: kill basestring. Guido van Rossum <guido@python.org> parents: 42622 diff changeset	519 if not isinstance(dir, str) or not os.path.isdir(dir):
26753 7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	520 continue
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	521 subdir = os.path.join(dir, pname)
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	522 # XXX This may still add duplicate entries to path on
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	523 # case-insensitive filesystems
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	524 initfile = os.path.join(subdir, init_py)
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	525 if subdir not in path and os.path.isfile(initfile):
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	526 path.append(subdir)
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	527 # XXX Is this the right thing for subpackages like zope.app?
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	528 # It looks for a file named "zope.app.pkg"
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	529 pkgfile = os.path.join(dir, sname_pkg)
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	530 if os.path.isfile(pkgfile):
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	531 try:
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	532 f = open(pkgfile)
40587 6b18a095c2e7 SF patch 1631942 by Collin Winter: Guido van Rossum <guido@python.org> parents: 39442 diff changeset	533 except IOError as msg:
26753 7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	534 sys.stderr.write("Can't open %s: %s\n" %
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	535 (pkgfile, msg))
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	536 else:
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	537 for line in f:
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	538 line = line.rstrip('\n')
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	539 if not line or line.startswith('#'):
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	540 continue
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	541 path.append(line) # Don't check for existence!
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	542 f.close()
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	543
7c15bf7726b2 Last week we discussed adding this module to the standard library. Guido van Rossum <guido@python.org> parents: diff changeset	544 return path
46478 beb7abcd6c01 Merged revisions 62350-62355,62358-62359,62364-62365,62370,62372-62375,62378-62379,62381 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43577 diff changeset	545
beb7abcd6c01 Merged revisions 62350-62355,62358-62359,62364-62365,62370,62372-62375,62378-62379,62381 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43577 diff changeset	546 def get_data(package, resource):
beb7abcd6c01 Merged revisions 62350-62355,62358-62359,62364-62365,62370,62372-62375,62378-62379,62381 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43577 diff changeset	547 """Get a resource from a package.
beb7abcd6c01 Merged revisions 62350-62355,62358-62359,62364-62365,62370,62372-62375,62378-62379,62381 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43577 diff changeset	548
beb7abcd6c01 Merged revisions 62350-62355,62358-62359,62364-62365,62370,62372-62375,62378-62379,62381 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43577 diff changeset	549 This is a wrapper round the PEP 302 loader get_data API. The package
beb7abcd6c01 Merged revisions 62350-62355,62358-62359,62364-62365,62370,62372-62375,62378-62379,62381 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43577 diff changeset	550 argument should be the name of a package, in standard module format
beb7abcd6c01 Merged revisions 62350-62355,62358-62359,62364-62365,62370,62372-62375,62378-62379,62381 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43577 diff changeset	551 (foo.bar). The resource argument should be in the form of a relative
beb7abcd6c01 Merged revisions 62350-62355,62358-62359,62364-62365,62370,62372-62375,62378-62379,62381 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43577 diff changeset	552 filename, using '/' as the path separator. The parent directory name '..'
beb7abcd6c01 Merged revisions 62350-62355,62358-62359,62364-62365,62370,62372-62375,62378-62379,62381 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43577 diff changeset	553 is not allowed, and nor is a rooted name (starting with a '/').
beb7abcd6c01 Merged revisions 62350-62355,62358-62359,62364-62365,62370,62372-62375,62378-62379,62381 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43577 diff changeset	554
beb7abcd6c01 Merged revisions 62350-62355,62358-62359,62364-62365,62370,62372-62375,62378-62379,62381 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43577 diff changeset	555 The function returns a binary string, which is the contents of the
beb7abcd6c01 Merged revisions 62350-62355,62358-62359,62364-62365,62370,62372-62375,62378-62379,62381 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43577 diff changeset	556 specified resource.
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beb7abcd6c01 Merged revisions 62350-62355,62358-62359,62364-62365,62370,62372-62375,62378-62379,62381 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43577 diff changeset	558 For packages located in the filesystem, which have already been imported,
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beb7abcd6c01 Merged revisions 62350-62355,62358-62359,62364-62365,62370,62372-62375,62378-62379,62381 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43577 diff changeset	561 d = os.path.dirname(sys.modules[package].__file__)
beb7abcd6c01 Merged revisions 62350-62355,62358-62359,62364-62365,62370,62372-62375,62378-62379,62381 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43577 diff changeset	562 data = open(os.path.join(d, resource), 'rb').read()
beb7abcd6c01 Merged revisions 62350-62355,62358-62359,62364-62365,62370,62372-62375,62378-62379,62381 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43577 diff changeset	563
beb7abcd6c01 Merged revisions 62350-62355,62358-62359,62364-62365,62370,62372-62375,62378-62379,62381 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43577 diff changeset	564 If the package cannot be located or loaded, or it uses a PEP 302 loader
beb7abcd6c01 Merged revisions 62350-62355,62358-62359,62364-62365,62370,62372-62375,62378-62379,62381 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43577 diff changeset	565 which does not support get_data(), then None is returned.
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beb7abcd6c01 Merged revisions 62350-62355,62358-62359,62364-62365,62370,62372-62375,62378-62379,62381 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43577 diff changeset	567
beb7abcd6c01 Merged revisions 62350-62355,62358-62359,62364-62365,62370,62372-62375,62378-62379,62381 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43577 diff changeset	568 loader = get_loader(package)
beb7abcd6c01 Merged revisions 62350-62355,62358-62359,62364-62365,62370,62372-62375,62378-62379,62381 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43577 diff changeset	569 if loader is None or not hasattr(loader, 'get_data'):
beb7abcd6c01 Merged revisions 62350-62355,62358-62359,62364-62365,62370,62372-62375,62378-62379,62381 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43577 diff changeset	570 return None
beb7abcd6c01 Merged revisions 62350-62355,62358-62359,62364-62365,62370,62372-62375,62378-62379,62381 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43577 diff changeset	571 mod = sys.modules.get(package) or loader.load_module(package)
beb7abcd6c01 Merged revisions 62350-62355,62358-62359,62364-62365,62370,62372-62375,62378-62379,62381 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43577 diff changeset	572 if mod is None or not hasattr(mod, '__file__'):
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beb7abcd6c01 Merged revisions 62350-62355,62358-62359,62364-62365,62370,62372-62375,62378-62379,62381 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43577 diff changeset	575 # Modify the resource name to be compatible with the loader.get_data
beb7abcd6c01 Merged revisions 62350-62355,62358-62359,62364-62365,62370,62372-62375,62378-62379,62381 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43577 diff changeset	576 # signature - an os.path format "filename" starting with the dirname of
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beb7abcd6c01 Merged revisions 62350-62355,62358-62359,62364-62365,62370,62372-62375,62378-62379,62381 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43577 diff changeset	579 parts.insert(0, os.path.dirname(mod.__file__))
beb7abcd6c01 Merged revisions 62350-62355,62358-62359,62364-62365,62370,62372-62375,62378-62379,62381 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43577 diff changeset	580 resource_name = os.path.join(*parts)
beb7abcd6c01 Merged revisions 62350-62355,62358-62359,62364-62365,62370,62372-62375,62378-62379,62381 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43577 diff changeset	581 return loader.get_data(resource_name)

Mercurial > cpython-lru_cache-weakref

annotate Lib/pkgutil.py @ 51749:1408feec0084 3.0