python - 上下文管理器类 ("with" block 的命名约定)

Question

对于要在 with block 中使用的类或函数，是否有通用的命名约定，例如

with CreateSomeContext() as x:
    ...

?表明类或函数的结果应该与 with 一起使用的东西？

Answer 1

在the respective PEP 0343 , 提到了两个约定:

The tense used in the names of the example contexts is not arbitrary. Past tense ("-ed") is used when the name refers to an action which is done in the __enter__ method and undone in the __exit__ method. Progressive tense ("-ing") is used when the name refers to an action which is to be done in the __exit__ method.