Question

In application no.1 I have a settings.py file, and a utils.py, which contains the following:

from application_one import settings

def someFunction():
    // do some logic here based on imported settings

Then in application no.2 I do:

from application_one.utils import someFunction

In application no.2 I have a local settings.py and when I import ‘someFunction()’ I want to use the local settings.py not the file from application no.1. So how would one overide the import in application no.2?

Answer 1

You can do the following:

def someFunction(settings=settings):
    …  # Unmodified code ('settings' refers to the local 'settings' variable)

(this lets someFunction() use the Application 1 settings by default) and then call it from Application 2 by sending the local settings:

someFunction(application2_settings)  # Explicit settings sent by Application 2

One advantage of this approach is that your code in both Application 1 and 2 explicitly shows that someFunction() gives results that are setting-dependent.