test_codecs.py 文件源码

def test_streamreaderwriter(self):
        f = io.BytesIO(b"\xc3\xbc")
        info = codecs.lookup("utf-8")
        with codecs.StreamReaderWriter(f, info.streamreader,
                                       info.streamwriter, 'strict') as srw:
            self.assertEqual(srw.read(), "\xfc")