test_standard_library.py 文件源码

def test_old_urllib_import(self):
        """
        Tests whether an imported module can import the old urllib package.
        Importing future.standard_library in a script should be possible and
        not disrupt any uses of the old Py2 standard library names in modules
        imported by that script.
        """
        code1 = '''
                from future import standard_library
                with standard_library.suspend_hooks():
                    import module_importing_old_urllib
                '''
        self._write_test_script(code1, 'runme.py')
        code2 = '''
                import urllib
                assert 'urlopen' in dir(urllib)
                print('Import succeeded!')
                '''
        self._write_test_script(code2, 'module_importing_old_urllib.py')
        output = self._run_test_script('runme.py')
        print(output)
        self.assertTrue(True)