Method get_fd_error

python/python3/tornado/iostream.py:319–327

Returns information about any error on the underlying file. This method is called after the `.IOLoop` has signaled an error on the file descriptor, and should return an Exception (such as `socket.error` with additional information, or None if no such information is a

(self)

        raise NotImplementedError()

    def get_fd_error(self) -> Optional[Exception]:
        """Returns information about any error on the underlying file.

        This method is called after the `.IOLoop` has signaled an error on the
        file descriptor, and should return an Exception (such as `socket.error`
        with additional information, or None if no such information is
        available.
        """
        return None

    def read_until_regex(
        self, regex: bytes, max_bytes: Optional[int] = None