从init.py文件导入Python

Question

I have a module with __main__ file and __init__ file in a package. 我有一个包含__main__文件和__init__文件的模块。

I want to import a function from the __init__ file: 我想从__init__文件导入一个函数：

import <package name>
<package name>.run_main()

and it failed with: 它失败了：

ImportError: No module named <package name>

I tried to add: 我尝试添加：

sys.path.append(os.path.dirname(__file__))

But it didn't help. 但这没有帮助。

Does anyone have a idea how can I solve it? 有谁知道我该如何解决？

Answer 1

The most elegant way, currently supported by PEP8 is to make your main code as follows: PEP8当前支持的最优雅的方法是使您的主要代码如下：

if __name__ == '__main__':
   main()

and of course, making the main a function with no arguments: 当然，使main为无参数的函数：

def main():

therefore, if you'd like to import that main function if could be as follows: 因此，如果您要导入该主要功能，则可能如下所示：

from <filename> import *
<filename>.main()

从__init__.py文件导入Python