<filename>02_Python/functions.py
def main():
    for i in range(10):
        print(f"The square of {i} is {square(i)}")
    return


def square(n):
    return n**2


if __name__ == '__main__':
    main()

<filename>02_Python/functions.py
def main():
    for i in range(10):
        print(f"The square of {i} is {square(i)}")
    return


def square(n):
    return n**2


if __name__ == '__main__':
    main()
