test_futurize.py 文件源码

def test_basestring(self):
        """
        In conservative mode, futurize would not modify "basestring"
        but merely import it from ``past``, and the following code would still
        run on both Py2 and Py3.
        """
        before = """
        assert isinstance('hello', basestring)
        assert isinstance(u'hello', basestring)
        assert isinstance(b'hello', basestring)
        """
        after = """
        from past.builtins import basestring
        assert isinstance('hello', basestring)
        assert isinstance(u'hello', basestring)
        assert isinstance(b'hello', basestring)
        """
        self.convert_check(before, after, conservative=True)