import random, string def rand_str(num, length=7): f = open('Activation_code.txt', 'w') for i in range(num): chars = string.ascii_letters + string.digits s = [random.choice(chars) for i in range(length)] f.write('{0}\n'.format(''.join(s))) f.close() if __name__ == '__main__': rand_str(200)