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63 lines
1.7 KiB
63 lines
1.7 KiB
5 years ago
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import os
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from types import ModuleType
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from .bdist import BDist
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from .develop import Develop
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from .installed import Installed
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from .sdist import SDist
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from .wheel import Wheel
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def get_metadata(path_or_module, metadata_version=None):
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""" Try to create a Distribution 'path_or_module'.
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o 'path_or_module' may be a module object.
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o If a string, 'path_or_module' may point to an sdist file, a bdist
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file, an installed package, or a working checkout (if it contains
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PKG-INFO).
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o Return None if 'path_or_module' can't be parsed.
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"""
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if isinstance(path_or_module, ModuleType):
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try:
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return Installed(path_or_module, metadata_version)
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except (ValueError, IOError): #pragma NO COVER
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pass
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try:
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__import__(path_or_module)
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except ImportError:
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pass
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else:
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try:
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return Installed(path_or_module, metadata_version)
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except (ValueError, IOError): #pragma NO COVER
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pass
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if os.path.isfile(path_or_module):
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try:
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return SDist(path_or_module, metadata_version)
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except (ValueError, IOError):
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pass
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try:
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return BDist(path_or_module, metadata_version)
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except (ValueError, IOError): #pragma NO COVER
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pass
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try:
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return Wheel(path_or_module, metadata_version)
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except (ValueError, IOError): #pragma NO COVER
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pass
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if os.path.isdir(path_or_module):
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try:
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return Wheel(path_or_module, metadata_version)
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except (ValueError, IOError): #pragma NO COVER
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pass
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try:
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return Develop(path_or_module, metadata_version)
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except (ValueError, IOError): #pragma NO COVER
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pass
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