What should I do if I get a ModuleNotFoundError error?

Question

Python

How to remove the error? I downloaded all the possible modules that contain settings, but the error does not disappear.
Moreover, it is generally strange that this module does not come with python. Sorry for the stupid question. Maybe IDLE needs a specific module? How to find it?
Traceback error
code (most recent call last):
File "C:\Users\1\Desktop\coding\Shop\glavniy.py", line 5, in
import settings
ModuleNotFoundError: No module named 'settings'
UPD Cyrillic removed
UPD downloaded the module which recommended IDLE the error didn't go away