[Python] How to mock a function which gets executed during the import time?

Here the ABC() and obj.print_1() get called during the import time and it prints "making object" and "printed 1" respectively. How can we mock all the three functions, __init__(), print_1(), and print_2()?

xyz.py

from abc import ABC
obj = ABC()
obj.print_1()

def func():
return obj.print_2(2)


abc.py

class ABC():
def __init__(self):
print("making object")

def print_1(self):
print("printed 1")
return None

def print_2(self, val):
print("printed ", val)
return None

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