_winconsole.py 文件源码

def _get_windows_console_stream(f, encoding, errors):
    if get_buffer is not None and \
       encoding in ('utf-16-le', None) \
       and errors in ('strict', None) and \
       hasattr(f, 'isatty') and f.isatty():
        func = _stream_factories.get(f.fileno())
        if func is not None:
            if not PY2:
                f = getattr(f, 'buffer')
                if f is None:
                    return None
            else:
                # If we are on Python 2 we need to set the stream that we
                # deal with to binary mode as otherwise the exercise if a
                # bit moot.  The same problems apply as for
                # get_binary_stdin and friends from _compat.
                msvcrt.setmode(f.fileno(), os.O_BINARY)
            return func(f)