Shulou(Shulou.com)06/03 Report--

Today, I will talk to you about the use of _ _ all__ in the python package, which may not be well understood by many people. in order to make you understand better, the editor has summarized the following content for you. I hope you can get something according to this article.

1. In the package, _ _ all__ controls the list of modules that can be imported, that is, declares which modules can be imported.

2. The _ _ all__ in the package is declared in the _ _ init__ file, not written in any module.

There are multiple modules in a package, of which modules declared by all can be imported, and modules that are not declared cannot be imported.

Example

From demo import * # all modules in the import package hhhh.fun1 () # call the fun1 function of the hhhh module, output "this is function 1" my_module.fun1 () # call the fun1 function of the my_module module, and output "this is a package". After reading the above, do you have any further understanding of the use of _ _ all__ in the python package? If you want to know more knowledge or related content, please follow the industry information channel, thank you for your support.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.