def _chdir(self, path):
        # NOTE: This is used by the sftp shell.
        # TODO: check 'expand' flags.
        self._path = [ (os.path.join(* [p[0] for p in self._path] + [path]), False) ]
Fail when naming does not pass correctness
dataset/ETHPy150Open jonathanslenders/python-deployer/deployer/host/base.py/HostContext._chdir--crossover with--dataset/ETHPy150Open pecan/pecan/pecan/tests/test_conf.py/TestConf.test_update_config_fail_identifier