Help me in solving ADVPPY197 problem

My issue

why this is not running

My code

# main.py
import mathOperations
# def main():
a = 10
b = 5
print(mathOperations.add(a,b))
print(mathOperations.subtract(a,b))
print(mathOperations.multiply(a,b))
print(mathOperations.divide(a,b))
# if __name__ == "__main__":
#     main()

Learning course: Advanced Python
Problem Link: How to use modules in Python in Advanced Python