calculator_game.py

#!/usr/bin/python
#-*- coding: utf-8 -*-
from __future__ import print_function, division
import os, sys, random

def get_statement():
    x = random.randint(1, 99)
    y = random.randint(1, 99)
    arithmetic_operators = ['+', '-', '/', '*']
    arithmetic_operator = arithmetic_operators[random.randint(0, len(arithmetic_operators) - 1)]
    statement = '%d %s %d' % (x, arithmetic_operator, y)
    return statement

def method():
    statement = get_statement()
    data = raw_input('%s: ' % statement)
    if filter(lambda x: data == x, ['q', 'quit']):
        sys.exit(0)
    result = eval(statement)
    print(result)

def main(argv):
    do_loop = True
    while do_loop:
        try:
            method()
        except Exception as err:
            print(err, file=sys.stderr)
    return 0

if __name__ == '__main__':
    sys.exit(main(sys.argv))