game.py

#!/usr/bin/env python3

import getpass
import random


MAX_GUESSES = 7
SCORE_FILENAME = "gamescores"

def genrandom(min_num, max_num):
    # delegate to the Python stdlib
    return random.randint(min_num, max_num)
def get_guess():
    while True:
        try:
            num = int(input("Enter a number: "))
        except ValueError:
            print("Not a number, please try again.")
        else:
            return num
def record_score(score):
    score_file = open(SCORE_FILENAME, "a")
    score_file.write("%s %s\n" % (getpass.getuser(), score))
    score_file.close()

def main():
    rand = genrandom(-100, 100)
    guesses = 0
    print("Allowed number of guesses:", MAX_GUESSES)
    while True:
        num = get_guess()
        guesses += 1
        if num == rand:
            print("Correct!")
            break
        elif num > rand:
            print("Too high!")
        else:
            print("Too low!")
        if guesses == MAX_GUESSES:
            print("Game over!")
            print("The number was:", rand)
            break
    print("Your score:", guesses)
    record_score(guesses)

if __name__ == "__main__":
    main()