# Python can do a switch/case like thingy using a dictionary and lambda
# basis for a nice calculator

def do_operation(op, a, b):
    """here a dictionary combined with the lambda inline function acts like switch/case"""
    return {'+': lambda: a + b,
            '-': lambda: a - b,
            '*': lambda: a * b,
            '/': lambda: a / b
           }[op]()

print do_operation('+', 2, 5)