Python语句断行没有反斜杠

Question

如何在不使用＆＃34; \＆＃34;的情况下打破此行？

with mock.patch('six.moves.builtins.open', mock.mock_open()), mock.patch('my_module.yaml.safe_load') as mock_yaml:
    #do something

我尝试使用括号，但它抱怨SyntaxError关于＆＃34; as＆＃34;

with (mock.patch('six.moves.builtins.open', mock.mock_open()),
    mock.patch('my_module.yaml.safe_load') as mock_yaml):
    #do something

Answer 1

在一组括号内打破它，但没有mock.patch(....)周围的括号，应该根据PEP8 Python Style Guide工作，因为括号之间有隐含的续行：

with mock.patch('six.moves.builtins.open', 
                mock.mock_open()), mock.patch('my_module.yaml.safe_load') as mock_yaml:

另一个选项类似于您的第二个建议，但是在as之前移动了右括号：

with (mock.patch('six.moves.builtins.open', mock.mock_open()), 
      mock.patch('my_module.yaml.safe_load')) as mock_yaml: