"""

lectureNote/chapters/chapt05/codes/try_except2.py

try-except example, originally from https://docs.python.org/3/tutorial/errors.html

"""

def this_fails():
    print('try-except example')
    print('1. valid division 1/2')
    print('2. invalid division 1/0')
    option = int(input("Please enter an option number -- 1 or 2: "))

    if option == 1:
        x = 1./2
    elif option == 2:
        x = 1./0
    return x

try:
    x = this_fails()
    print(x)
except ZeroDivisionError:
    print('Handling run-time error')