]cArddlZddlZgdZ ddlmZdZdZGddZ dZ y#e$r ddlmZY!wxYw) N)install NullFinderProtocol)rcbtjj|t|S)z Class decorator for installation on sys.meta_path. Adds the backport DistributionFinder to sys.meta_path and attempts to disable the finder functionality of the stdlib DistributionFinder. )sys meta_pathappenddisable_stdlib_finder)clss t|dddk(xr t|dS)N __module___frozen_importlib_externalfind_distributions)getattrhasattr)finders r matchesz&disable_stdlib_finder..matches%s0 L$ )*T.5f>R.S Tr N)filterrrr)rrs r r r s*T #--0&  %&r c$eZdZdZedZeZy)rzj A "Finder" (aka "MetaClassFinder") that never finds any modules, but may find distributions. cy)N)argskwargss r find_speczNullFinder.find_spec4sr N)__name__r __qualname____doc__ staticmethodr find_modulerr r rr.s" Kr rc:tjdk(}||zS)zY Adjust for variable stacklevel on partial under PyPy. Workaround for #327. PyPy)platformpython_implementation)valis_pypys r pypy_partialr)As! ,,.&8G =r ) rr%__all__typingr ImportErrortyping_extensionsrr rr)rr r r.sH  0+ &$&o+*+s ( 66