hangman.py

import random
from words import words
import string

def get_valid_word(words):
    word = random.choice(words)
    while '_' in word or ' ' in word:
        word = random.choice(words)
    return word.upper()

def hangman():
    word = get_valid_word(words)
    word_letters = set(word) #letters in the word
    alphabet = set(string.ascii_uppercase)
    used_letters = set() #what the user has gussed

    lives = 10

    # getting user input
    while len(word_letters) > 0 and lives > 0:
        # letters used
        print ('you have', lives, 'lives left and you have used these letters: ', ' '.join(used_letters))
        # what current word is (ie W - R D)
        word_list = [letter if letter in used_letters else '_' for letter in word]
        print('Current word: ', ' '.join(word_list))
        user_letter = input('Guess a letter: ').upper()
        if user_letter in alphabet - used_letters:
            used_letters.add(user_letter)
            if user_letter in word_letters:
                word_letters.remove(user_letter)
            else:
                lives = lives - 1
                print('Letter is not in word.')

        elif user_letter in used_letters:
            print('You have already used that character. Please try agian.')
        
        else: 
            print('Invalid character. Please try again.')
        
        # gets here when 

    if lives == 0:
        print('You dies, sorry. You run out of words.')
    else:
        print('You gussed the word', word, '!!')
hangman()