def connectionLost(self, reason):
        if self.exitCode is None:
            self.exitCode = 1
            log.err(reason, "Unexpected call to connectionLost")
        reactor.stop()
This may only be invoked after C{readConnectionLost}.  If it happens
dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/twisted/test/stdio_test_halfclose.py/HalfCloseProtocol.connectionLost