import random
def GAME():
    win = 0
    guessedletters = []
    display = []
    alphabet = 'abcdefghijklmnopqrstuvwxyz'
    f = open('hang.txt','r')
    lines = f.readlines()
    rand = random.randrange(0,51,2)
    rand = lines[rand]
    for ii in rand:
        display.append('_')
    rand = list(rand)
    rand.remove('n')
    chances = 9
    while chances > 0:
        if '_' not in display:
            print('Congratulations! You guessed the word!')
            win = 1
            break
        print(display)
        print(chances,'guesses left.')
        guess = input('Guess a letter: ')
        if guess not in alphabet:
            print('Not a letter')
            continue
        elif guess in guessedletters:
            print('Already guessed')
            continue
        else:
            guessedletters.append(guess)
            chances -= 1
            if guess in rand:
                print(guess,'is in the word!')
                q = rand.index(guess)
                del display[q]
                display.insert(q, guess)
            else:
                print('Not in the word!')
                continue
    if win != 1:
        print('The word was',rand,'.')
    print('Thanks for playing!')
    again = input('Press enter to play again, and N to quit.')
    if again == '':
        return GAME()
    else:
        return print('Goodbye!')
GAME()