U f @sddlZddlZddlZddlmZddlmZejdkrNeeej efZ neeej fZ ddZ e e e ddd Z e ed d d Zejd dZdS)N)Union)unique_everseen) cCstj|}tj|dddS)z1Ensure that the parent directory of `path` existsT)exist_okN)ospathdirnamemakedirs)rr r /lib/python3.8/site-packages/setuptools/_path.pyensure_directorys r )p1p2returncCst|t|kS)aDiffers from os.path.samefile because it does not require paths to exist. Purely string based (no comparison between i-nodes). >>> same_path("a/b", "./a/b") True >>> same_path("a/b", "a/./b") True >>> same_path("a/b", "././a/b") True >>> same_path("a/b", "./a/b/c/..") True >>> same_path("a/b", "../a/b/c") False >>> same_path("a", "a/b") False )normpath)rrr r r same_pathsr)filenamercCs6tjdkrtj|n|}tjtjtj|S)z2Normalize a file/dir name for comparison purposes.cygwin)sysplatformrrabspathnormcaserealpathr)rfiler r r r(src cst}tjd|}tjdd}zBtjt|}td||g}tj|}|r\|tjd<dVW5||kr~tjddn |tjd<XdS)a Add the indicated paths to the head of the PYTHONPATH environment variable so that subprocesses will also see the packages at these paths. Do this in a context that restores the value on exit. >>> getfixture('monkeypatch').setenv('PYTHONPATH', 'anything') >>> with paths_on_pythonpath(['foo', 'bar']): ... assert 'foo' in os.environ['PYTHONPATH'] ... assert 'anything' in os.environ['PYTHONPATH'] >>> os.environ['PYTHONPATH'] 'anything' >>> getfixture('monkeypatch').delenv('PYTHONPATH') >>> with paths_on_pythonpath(['foo', 'bar']): ... assert 'foo' in os.environ['PYTHONPATH'] >>> os.environ.get('PYTHONPATH') Z PYTHONPATHN) objectrenvirongetpoppathsepjoinrfilter)pathsZnothingZorig_pythonpathZcurrent_pythonpathprefixZto_joinnew_pathr r r paths_on_pythonpath/s   r&) contextlibrrtypingrZmore_itertoolsr version_infostrPathLikeZStrPathr boolrrcontextmanagerr&r r r r s