def name(self):
        """
        The name of this file; a repr-style string giving information about its
        namespace.

        @return: A file name.
        @rtype: L{str}
        """
        return (
            "<{0} {1}#{2}>".format(
                self.__class__.__name__,
                self.log.namespace,
                self.level.name,
            )
        )

        The name of this file; a repr-style string giving information about its
        namespace.

        @return: A file name.
        @rtype: L{str}
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/logger/_io.py