"""Compatibility Support for Python 2.7 and earlier"""importplatformfromsetuptools.externimportsixdefget_all_headers(message,key):""" Given an HTTPMessage, return all headers matching a given key. """returnmessage.get_all(key)ifsix.PY2:defget_all_headers(message,key):returnmessage.getheaders(key)linux_py2_ascii=(platform.system()=='Linux'andsix.PY2)rmtree_safe=striflinux_py2_asciielselambdax:x"""Workaround for http://bugs.python.org/issue24672"""