test_standard_library.py 文件源码

def test_install_aliases(self):
        """
        Does the install_aliases() interface monkey-patch urllib etc. successfully?
        """
        from future.standard_library import remove_hooks, install_aliases
        remove_hooks()
        install_aliases()

        from collections import Counter, OrderedDict   # backported to Py2.6
        from collections import UserDict, UserList, UserString

        # Requires Python dbm support:
        # import dbm
        # import dbm.dumb
        # import dbm.gnu
        # import dbm.ndbm

        from itertools import filterfalse, zip_longest

        from subprocess import check_output    # backported to Py2.6
        from subprocess import getoutput, getstatusoutput

        from sys import intern

        # test_support may not be available (e.g. on Anaconda Py2.6):
        # import test.support

        import urllib.error
        import urllib.parse
        import urllib.request
        import urllib.response
        import urllib.robotparser

        self.assertTrue('urlopen' in dir(urllib.request))