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