functions.py

# Here is an example of a function

def say_hello():
    print("Hello world")


# it doesn't run without being called

# uncomment the following to test it

# say_hello()


# Here is a funciton that calculates a square:


def calcSquare(n):
    return 9

# Unfortunately it always returns the square of 3, not the given number
# Correct it and uncomment the lines below to test it

# n=5
# print(f"The square of {n} is {calcSquare(n)}")