interactiveshell.py 文件源码

def enable_win_unicode_console(self):
        if sys.version_info >= (3, 6):
            # Since PEP 528, Python uses the unicode APIs for the Windows
            # console by default, so WUC shouldn't be needed.
            return

        import win_unicode_console

        if PY3:
            win_unicode_console.enable()
        else:
            # https://github.com/ipython/ipython/issues/9768
            from win_unicode_console.streams import (TextStreamWrapper,
                                 stdout_text_transcoded, stderr_text_transcoded)

            class LenientStrStreamWrapper(TextStreamWrapper):
                def write(self, s):
                    if isinstance(s, bytes):
                        s = s.decode(self.encoding, 'replace')

                    self.base.write(s)

            stdout_text_str = LenientStrStreamWrapper(stdout_text_transcoded)
            stderr_text_str = LenientStrStreamWrapper(stderr_text_transcoded)

            win_unicode_console.enable(stdout=stdout_text_str,
                                       stderr=stderr_text_str)