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 IOError as e:
            if e.errno == errno.EADDRINUSE:
                self.skipTest(port % "couldn't bind to port %d")
            raise
dataset/ETHPy150Open amrdraz/kodr/app/brython/www/src/Lib/test/test_ftplib.py/TestFTPClass.test_source_address_passive_connection/swapped operands of `%`