addition.py

#!/usr/bin/python
import random
import time
import sys

def getNewQuestion(x, y):
    print("{:^4} + {:^4} = ".format(x, y), end="")

    try:
        result = input()

        if result.lower() == "q" or result.lower() == "quit":
            print("\033[{}C\x1b[1A\033[93m \t[Exit]\033[0m".format(15 + len(str(result))))
            sys.exit()

        result = int(result)

        if result != x + y:
            print("\033[{}C\x1b[1A\033[91m \t[Incorrect]\033[0m".format(15 + len(str(result))))
            getNewQuestion(x, y)

        else:
            print("\033[{}C\x1b[1A\033[92m \t[Correct]\033[0m".format(15 + len(str(result))))

    except ValueError:
        print("\033[{}C\x1b[1A\033[91m \t[Incorrect]\033[0m".format(15 + len(str(result))))
        getNewQuestion(x, y)

    except KeyboardInterrupt:
        print("\033[93m \t[Exit]\033[0m".format(17))
        sys.exit()

def main():
    random.seed(time.clock())

    while True:
        x = random.randrange(0,99)
        y = random.randrange(0,99)

        getNewQuestion(x, y)

main()