_compat.py 文件源码

def wrap_error(func, *args, **kw):
        """
        Wrap socket.error, IOError, OSError, select.error to raise new specialized
        exceptions of Python 3.3 like InterruptedError (PEP 3151).
        """
        try:
            return func(*args, **kw)
        except (socket.error, IOError, OSError) as exc:
            if hasattr(exc, 'winerror'):
                _wrap_error(exc, _MAP_ERRNO, exc.winerror)
                # _MAP_ERRNO does not contain all Windows errors.
                # For some errors like "file not found", exc.errno should
                # be used (ex: ENOENT).
            _wrap_error(exc, _MAP_ERRNO, exc.errno)
            raise
        except select.error as exc:
            if exc.args:
                _wrap_error(exc, _MAP_ERRNO, exc.args[0])
            raise