def validate_output(self, process):
        stdout, stderr = process.communicate()
        try:
            print_(stdout % "[OUT] %s")
            self.assertEqual(len(stderr), 0)
        except AssertionError:
            print_("[ERROR] %s" % stderr.strip())
            raise
dataset/ETHPy150Open pcmanus/ccm/tests/test_cmds.py/TestCCMCreate.validate_output/swapped operands of `%`