Fixed #13404 -- Reworked module_has_submodule() to allow it to work under AppEngine. Thanks to Waldemar Kornewald for the report and testing help.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@13023 bcc190cf-cafb-0310-a4f2-bffc1f526a37
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@ -2,18 +2,17 @@ import os
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import imp
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import imp
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def module_has_submodule(mod, submod_name):
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def module_has_submodule(mod, submod_name):
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# If the module was loaded from an egg, __loader__ will be set and
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# If the module was loaded from an egg, __loader__ will be set and
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# its find_module must be used to search for submodules.
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# its find_module must be used to search for submodules.
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loader = getattr(mod, '__loader__', None)
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loader = getattr(mod, '__loader__', None)
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if loader:
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if loader:
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mod_path = "%s.%s" % (mod.__name__, submod_name)
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mod_path = "%s.%s" % (mod.__name__.rsplit('.',1)[-1], submod_name)
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mod_path = mod_path[len(loader.prefix):]
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x = loader.find_module(mod_path)
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x = loader.find_module(mod_path)
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if x is None:
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if x is None:
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# zipimport.zipimporter.find_module is documented to take
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# zipimport.zipimporter.find_module is documented to take
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# dotted paths but in fact through Pyton 2.7 is observed
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# dotted paths but in fact through Python 2.7 is observed
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# to require os.sep in place of dots...so try using os.sep
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# to require os.sep in place of dots...so try using os.sep
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# if the dotted path version failed to find the requested
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# if the dotted path version failed to find the requested
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# submodule.
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# submodule.
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x = loader.find_module(mod_path.replace('.', os.sep))
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x = loader.find_module(mod_path.replace('.', os.sep))
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return x is not None
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return x is not None
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