上下文管理器类的命名约定(“带有"块)

本文介绍了上下文管理器类的命名约定(“带有"块)的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

对于要在with块中使用的类或函数是否存在通用命名约定，例如

Is there a general naming convention for classes or functions that are meant to be used in with block such as

with CreateSomeContext() as x: ...

?信号表明类或函数的结果应与with一起使用?

? Something that signals that the class or the result of a function should be used with with?

推荐答案

在相应的PEP 0343 ，其中提到了两个约定:

In the respective PEP 0343, there is a mention of two conventions:

示例上下文名称中使用的时态不是 随意的.当名称指代一个 在__enter__方法中完成并在 __exit__方法.当名称表示要在__exit__方法中执行的操作时，将使用渐进式时态("-ing").

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.