函数中没有Python代码的名称吗？

Question

标题差不多说明了这一点。你知道吗

我想知道我应该怎么称呼那些只存在于Python文件中而不存在于任何函数中的代码。你知道吗

对于某些上下文—在我所关注的特定模块中，有些函数具有已定义的定义，但在导入模块时，也会在末尾执行一些代码。这个代码叫什么？你知道吗

Answer 1

如果希望代码仅在直接执行时触发，请使用if __name__ == '__main__'条件：

__name__ is the name of the scope in which top-level code executes. A module’s __name__ is set equal to '__main__' when read from standard input, a script, or from an interactive prompt.

A module can discover whether or not it is running in the main scope by checking its own name, which allows a common idiom for conditionally executing code in a module when it is run as a script or with python -m but not when it is imported.

if __name__ == "__main__":
    # execute only if run as a script
    main()