import random

# List of words for the game
word_list = ["python", "programming", "hangman", "computer", "hello"]

def choose_word(word_list):
    return random.choice(word_list)
# chooses a random word for the game
def display_word(word, guesses):
    display = ""
    for letter in word:
        if letter in guesses:
            display += letter
        else:
            display += "_"
    return display
# prints the blank word
def hangman():
    word_to_guess = choose_word(word_list)
    guessed_letters = []
    attempts = 6

    print("Welcome to Hangman!")
    print(display_word(word_to_guess, guessed_letters))

    while attempts > 0:
        guess = input("Guess a letter: ").lower()

        if len(guess) == 1 and guess.isalpha():
            if guess in guessed_letters:
                print("You've already guessed that letter!")
                # if letter is repeated, print you've already gussed that
            elif guess in word_to_guess:
                guessed_letters.append(guess)
                print("Good guess!")
                print(display_word(word_to_guess, guessed_letters))
            else:
                guessed_letters.append(guess)
                attempts -= 1
                print("Wrong guess! You have {} attempts left.".format(attempts))
                print(display_word(word_to_guess, guessed_letters))
                #if the guess is wrong, then...etc.
        else:
            print("Please enter a valid single letter.")
            # if no letter is typed

        if "_" not in display_word(word_to_guess, guessed_letters):
            print("Congratulations! You've guessed the word: {}".format(word_to_guess))
            break

    if attempts == 0:
        print("Game over! The word was: {}".format(word_to_guess))

if __name__ == "__main__":
    hangman()
Welcome to Hangman!
_________
Guess a letter: a
Wrong guess! You have 5 attempts left.
_________
Guess a letter: e
Good guess!
_e_e___e_
Guess a letter: t
Wrong guess! You have 4 attempts left.
_e_e___e_
Guess a letter: s
Wrong guess! You have 3 attempts left.
_e_e___e_
Guess a letter: n
Wrong guess! You have 2 attempts left.
_e_e___e_
Guess a letter: m
Wrong guess! You have 1 attempts left.
_e_e___e_
Guess a letter: i
Wrong guess! You have 0 attempts left.
_e_e___e_
Game over! The word was: developer