unable to mock global variable assigned to function call python pytest

Question

When I run my pytest and mock patch a global variable in the python file that has a function call assigned to capture the output, I'm unable to mock it (I dont want to actually execute the function during tests). I find that the function is still getting called. How can I prevent it from being called?

file 1: /app/file1.py
def some_func():
 return "the sky is like super blue"

file 2: /app/file2.py
from app.file1 import some_func
VAR1 = some_func()

file 3: /tests/app/test_file2.py
import mock
import pytest
from app.file2 import VAR1

@mock.patch('app.file2.VAR1', return_value=None)
def test_file_2_func(baba_fake_val):
  print('made it to my test :)'
  print(VAR1)

Answer 1

1. VAR = some_func() will be executed when you import app.file2 , so you have to mock before importing it if you want to prevent som_func call.
2. In order to prevent this function call you have to mock some_func , not VAR1 like this:

import mock
import pytest
import app.file1

@mock.patch('app.file1.some_func', return_value=None)
def test_file_2_func(baba_fake_val):
  from app.file2 import VAR1
  print('made it to my test :)'
  print(VAR1)