test_ftplib.py 文件源码

def test_source_address_passive_connection(self):
        port = support.find_unused_port()
        self.client.source_address = (HOST, port)
        try:
            with self.client.transfercmd('list') as sock:
                self.assertEqual(sock.getsockname()[1], port)
        except OSError as e:
            if e.errno == errno.EADDRINUSE:
                self.skipTest("couldn't bind to port %d" % port)
            raise