def __exit__(excType, excValue, traceback):
        """
        Attempt to re-open the reserved file descriptor.  See
        L{reserve} for caveats.

        @param excType: See L{object.__exit__}
        @param excValue: See L{object.__exit__}
        @param traceback: See L{object.__exit__}
        """

        Attempt to re-open the reserved file descriptor.  See
        L{reserve} for caveats.

        @param excType: See L{object.__exit__}
        @param excValue: See L{object.__exit__}
        @param traceback: See L{object.__exit__}
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/internet/tcp.py