help with number game

Traceback (most recent call last):
  File "C:\Users\jasper\Desktop\pycharm scripts\number_game.py", line 46, in <module>
    number_game()
  File "C:\Users\jasper\Desktop\pycharm scripts\number_game.py", line 15, in number_game
    print("{} That's not a number!".format(guess))
UnboundLocalError: local variable 'guess' referenced before assignment

import random
guesses =[]
def number_game():
    print("""Welcome to the number game
    """)
    #generate a random number between 1 and 10
    secret_num = random.randint(1, 10)
    tries = 5

    while len(guesses) < 5:
        try:#get a number guess from the player
             guess = int(input("Guess a number between 1 and 10: "))

        except ValueError :#catch when someone submits a non integer
             print("{} That's not a number!".format(guess))

        else :
             tries -= 1
             #compare guess to secret number
             if guess == secret_num:
                 print("You got it! my number was {}".format(secret_num))
                 break

            # limit the number of guesses

             elif input == "RESTART":
                number_game()
                #print hit/miss
             else:
                print("That's not it!")
                # print "to low" or "to high" messages for bad guesses
                if guess < secret_num:
                    print("To low {} tries left ".format(tries))
                elif guess > secret_num:
                    print("To high {} tries left ".format(tries))
             guesses.append(guess)
    else:
        print('''To bad my number was {}

        Thanks for playing'''.format(secret_num))
    play_again =input('Do you want to play again Y/n')
    if play_again.lower != "n":
        number_game()
    else:
        print("Bye!")
number_game()
# let people play again