import random

class Hangman:

    def __init__(self):
        self.word_bank = []
        self.secret_word = ''
        self.already_guessed = []
        self.num_guesses = 0

    def __str__(self):
        pass

    def read_file(self):
        for line in open('wordbank.txt', 'r'):
            self.word_bank.append(line.strip())

    def get_random_word(self):
        self.secret_word = random.choice(self.word_bank)

    def print_word(self):
        print('Word to guess has {} letters'.format(len(self.secret_word)))

    def get_guess(self):
        try:
            guess = input('Guess a letter between A-Z: ')
            if guess.isnumeric():
                raise TypeError
            if guess == 'stop':
                return None
            self.already_guessed.append(guess)
            self.num_guesses += 1
            return True
        except TypeError:
            return False

    def num_guesses():
        pass

    def show_win():
        pass

def main():
    game = Hangman()
    game.read_file()
    game.get_random_word()
    for i in range(1,50):
        print('')
    print('To stop playing type "stop".')
    print('')
    game.print_word()
    while game.get_guess() != None:
        if game.get_guess():
            game.get_guess()
            for i in range(1,50):
                print('')
            print('To stop playing type "stop".')
            print('')
        else:
            for i in range(1,50):
                print('')
            print('To stop playing type "stop".')
            print('')
            print('That is not a valid letter.')
    print('Thank you for playing.')

main()