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This article mainly explains the "python package of _ _ all__ how to use", the article explains the content is simple and clear, easy to learn and understand, now please follow the editor's ideas slowly in-depth, together to study and learn "python package of _ _ all__ how to use" it!

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, output "this is a package" what Python is mainly used for:

1. Web development

2. Data science research

3. Web crawler

4. Embedded application development

5. Game development

6. Desktop application development.

Thank you for reading, the above is the content of "how to use _ _ all__ in the python package". After the study of this article, I believe you have a deeper understanding of how to use the _ _ all__ in the python package, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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