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diff --git a/eggs/mercurial-1.7.3-py2.6-linux-x86_64.egg/mercurial/demandimport.py b/eggs/mercurial-1.7.3-py2.6-linux-x86_64.egg/mercurial/demandimport.py
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-# demandimport.py - global demand-loading of modules for Mercurial
-#
-# Copyright 2006, 2007 Matt Mackall <mpm@selenic.com>
-#
-# This software may be used and distributed according to the terms of the
-# GNU General Public License version 2 or any later version.
-
-'''
-demandimport - automatic demandloading of modules
-
-To enable this module, do:
-
- import demandimport; demandimport.enable()
-
-Imports of the following forms will be demand-loaded:
-
- import a, b.c
- import a.b as c
- from a import b,c # a will be loaded immediately
-
-These imports will not be delayed:
-
- from a import *
- b = __import__(a)
-'''
-
-import __builtin__
-_origimport = __import__
-
-class _demandmod(object):
- """module demand-loader and proxy"""
- def __init__(self, name, globals, locals):
- if '.' in name:
- head, rest = name.split('.', 1)
- after = [rest]
- else:
- head = name
- after = []
- object.__setattr__(self, "_data", (head, globals, locals, after))
- object.__setattr__(self, "_module", None)
- def _extend(self, name):
- """add to the list of submodules to load"""
- self._data[3].append(name)
- def _load(self):
- if not self._module:
- head, globals, locals, after = self._data
- mod = _origimport(head, globals, locals)
- # load submodules
- def subload(mod, p):
- h, t = p, None
- if '.' in p:
- h, t = p.split('.', 1)
- if not hasattr(mod, h):
- setattr(mod, h, _demandmod(p, mod.__dict__, mod.__dict__))
- elif t:
- subload(getattr(mod, h), t)
-
- for x in after:
- subload(mod, x)
-
- # are we in the locals dictionary still?
- if locals and locals.get(head) == self:
- locals[head] = mod
- object.__setattr__(self, "_module", mod)
-
- def __repr__(self):
- if self._module:
- return "<proxied module '%s'>" % self._data[0]
- return "<unloaded module '%s'>" % self._data[0]
- def __call__(self, *args, **kwargs):
- raise TypeError("%s object is not callable" % repr(self))
- def __getattribute__(self, attr):
- if attr in ('_data', '_extend', '_load', '_module'):
- return object.__getattribute__(self, attr)
- self._load()
- return getattr(self._module, attr)
- def __setattr__(self, attr, val):
- self._load()
- setattr(self._module, attr, val)
-
-def _demandimport(name, globals=None, locals=None, fromlist=None, level=None):
- if not locals or name in ignore or fromlist == ('*',):
- # these cases we can't really delay
- if level is None:
- return _origimport(name, globals, locals, fromlist)
- else:
- return _origimport(name, globals, locals, fromlist, level)
- elif not fromlist:
- # import a [as b]
- if '.' in name: # a.b
- base, rest = name.split('.', 1)
- # email.__init__ loading email.mime
- if globals and globals.get('__name__', None) == base:
- return _origimport(name, globals, locals, fromlist)
- # if a is already demand-loaded, add b to its submodule list
- if base in locals:
- if isinstance(locals[base], _demandmod):
- locals[base]._extend(rest)
- return locals[base]
- return _demandmod(name, globals, locals)
- else:
- if level is not None:
- # from . import b,c,d or from .a import b,c,d
- return _origimport(name, globals, locals, fromlist, level)
- # from a import b,c,d
- mod = _origimport(name, globals, locals)
- # recurse down the module chain
- for comp in name.split('.')[1:]:
- if not hasattr(mod, comp):
- setattr(mod, comp, _demandmod(comp, mod.__dict__, mod.__dict__))
- mod = getattr(mod, comp)
- for x in fromlist:
- # set requested submodules for demand load
- if not(hasattr(mod, x)):
- setattr(mod, x, _demandmod(x, mod.__dict__, locals))
- return mod
-
-ignore = [
- '_hashlib',
- '_xmlplus',
- 'fcntl',
- 'win32com.gen_py',
- '_winreg', # 2.7 mimetypes needs immediate ImportError
- 'pythoncom',
- # imported by tarfile, not available under Windows
- 'pwd',
- 'grp',
- # imported by profile, itself imported by hotshot.stats,
- # not available under Windows
- 'resource',
- # this trips up many extension authors
- 'gtk',
- # setuptools' pkg_resources.py expects "from __main__ import x" to
- # raise ImportError if x not defined
- '__main__',
- '_ssl', # conditional imports in the stdlib, issue1964
- ]
-
-def enable():
- "enable global demand-loading of modules"
- __builtin__.__import__ = _demandimport
-
-def disable():
- "disable global demand-loading of modules"
- __builtin__.__import__ = _origimport
-