给定文件名获取其绝对路径

Question

I am developing a python library and the end-user who uses my library in their respective application should be able to provide a configuration file in the root path of their application which my library will read in run-time. The end-user's application can be any Project like a Simple Python Project, Django, Flask etc

In my library, I'm planning to have the following code. The following is a piece of code that will be exported as a library. for example, my-library

def read_config():
   BASE_DIR = # Some code
   with open(os.path.join(BASE_DIR, 'test.conf')) as f:
      f.read()

I'm not sure how to get the value of BASE_DIR of the end-user's application through my library

I have seen some posts related to getting root path using settings.py which resides in the root path of the application. But in my case since I have no idea about end user's project structure, I guess I cannot use this.

Note -The enduser would install my library as a package using pip install my-library

Answer 1

I think you may want to rethink your approach.

I don't think its going to be possible to dynamically retrieve a base directory easily, but then you may not have to. Instead of relying on a settings file, make your app have its own settings static class that you can retrieve any configurations you need. If an end user wishes to customize any settings then they can either introduce or expand an initialization step to their application.

This is the same way that django does it, django uses its own settings class which end users can override and set their own values for.