B c @s(ddlZddlZddlZddlZddlmZmZmZmZm Z ddl m Z ddl m Z mZmZmZmZervddlmZneZddd d d d d ddg ZedddZGdddeZejddedddZeddd Zeeeeddd Zee dddZeee dddZeeee dd d!Z dS)"N) TYPE_CHECKINGListOptionalTypecast) strtobool)BaseDistributionBaseEnvironmentFilesystemWheel MemoryWheelWheel)Protocolr r r r r get_default_environmentget_environmentget_wheel_distributionselect_backend)returnc CsNttttttjdSQRXtj dkr4dSddl }tt |j ddS)aWhether to use the ``importlib.metadata`` or ``pkg_resources`` backend. By default, pip uses ``importlib.metadata`` on Python 3.11+, and ``pkg_resourcess`` otherwise. This can be overridden by a couple of ways: * If environment variable ``_PIP_USE_IMPORTLIB_METADATA`` is set, it dictates whether ``importlib.metadata`` is used, regardless of Python version. * On Python 3.11+, Python distributors can patch ``importlib.metadata`` to add a global constant ``_PIP_USE_IMPORTLIB_METADATA = False``. This makes pip use ``pkg_resources`` (unless the user set the aforementioned environment variable to *True*). Z_PIP_USE_IMPORTLIB_METADATAN) FrT) contextlibsuppressKeyError ValueErrorboolrosenvironsys version_infoimportlib.metadatagetattrmetadata) importlibr#P/var/www/cleansys/lib/python3.7/site-packages/pip/_internal/metadata/__init__.py_should_use_importlib_metadatas  r%c@s&eZdZUeeed<eeed<dS)Backend Distribution EnvironmentN)__name__ __module__ __qualname__rr __annotations__r r#r#r#r$r&4s  r&)maxsizecCs2trddlm}tt|Sddlm}tt|S)Nr)r") pkg_resources)r%r"rr&r.)r"r.r#r#r$r9s    cCs tjS)a Get the default representation for the current environment. This returns an Environment instance from the chosen backend. The default Environment instance should be built from ``sys.path`` and may use caching to share instance state accorss calls. )rr(defaultr#r#r#r$rDs)pathsrcCstj|S)a'Get a representation of the environment specified by ``paths``. This returns an Environment instance from the chosen backend based on the given import paths. The backend must build a fresh instance representing the state of installed distributions when this function is called. )rr(Z from_paths)r1r#r#r$rNs) directoryrcCstj|S)zGet the distribution metadata representation in the specified directory. This returns a Distribution instance from the chosen backend based on the given on-disk ``.dist-info`` directory. )rr'Zfrom_directory)r2r#r#r$get_directory_distributionXsr3)wheelcanonical_namercCstj||S)aGet the representation of the specified wheel's distribution metadata. This returns a Distribution instance from the chosen backend based on the given wheel's ``.dist-info`` directory. :param canonical_name: Normalized project name of the given wheel. )rr'Z from_wheel)r4r5r#r#r$ras)metadata_contentsfilenamer5rcCstj|||S)aGet the dist representation of the specified METADATA file contents. This returns a Distribution instance from the chosen backend sourced from the data in `metadata_contents`. :param metadata_contents: Contents of a METADATA file within a dist, or one served via PEP 658. :param filename: Filename for the dist this metadata represents. :param canonical_name: Normalized project name of the given dist. )rr'Zfrom_metadata_file_contents)r6r7r5r#r#r$get_metadata_distributionlsr8)!r functoolsrrtypingrrrrrpip._internal.utils.miscrbaser r r r r robject__all__rr%r& lru_cacherrstrrr3rbytesr8r#r#r#r$s<