def atfork(self):
self.sock.close()<EOL>self.close()<EOL>
Terminate this Transport without closing the session.  On posix
systems, if a Transport is open during process forking, both parent
and child will share the underlying socket, but only one process can
use the connection (without corrupting the session).  Use this method
to clean up a Transport object without disrupting the other process.

.. versionadded:: 1.5.3