sys.exitfunc not working in python

I am trying to run following simple code

import sys

print("Starting Test Python Module");

def testmethod():
    print("From test method")

sys.exitfunc = testmethod
print("Terminating Test Python Module");

and it prints

C:\Users\athakur\Softwares>python test.py
Starting Test Python Module
Terminating Test Python Module

I am not able to understand why it does not print "From Test method"

Using atexit works fine though

import atexit

print("Starting Test Python Module");

def testmethod():
    print("From test method")

atexit.register(testmethod)
print("Terminating Test Python Module");

Outputs

C:\Users\athakur\Softwares>python test.py
Starting Test Python Module
Terminating Test Python Module
From test method


Asked by: Alfred135 | Posted: 06-12-2021






Answer 1

sys.exitfunc is deprecated since python2.4 and was removed in python3.

Answered by: Fenton267 | Posted: 07-01-2022



Answer 2

sys.exitfunc does not exist in Python 3.x.

Answered by: Catherine203 | Posted: 07-01-2022



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