teepty.py 文件源码

def _stdin_filename(self, stdin):
        if stdin is None: 
            rtn = None
        elif isinstance(stdin, io.FileIO) and os.path.isfile(stdin.name):
            rtn = stdin.name
        elif isinstance(stdin, (io.BufferedIOBase, str, bytes)):
            self._temp_stdin = tsi = tempfile.NamedTemporaryFile()
            rtn = tsi.name
        else:
            raise ValueError('stdin not understood {0!r}'.format(stdin))
        return rtn