Hangman

print ("Let's Play Hangman! Try to guess a the word! You will lose a life everytime you guess a wrong letter and will have 6 tries")
import random
bank = ['aaa', 'bear', 'donkey', 'fff', 'horse', 'ooo', 'zebra']
lives = 6
word = random.choice(bank)
x = len(word)
s = ["-"] * x
print(s)


def joining():
    if input_str in word[inx] and lives >= 1:
        s[inx] = input_str
        ''.join(s)

def livesGone():
    if lives != 0:
        print("that letter is not in the word, Lives left:", lives)
    else:
        print("out of lives")
def weirdCondition ():
    if len(input_str) > 1 or input_str.isnumeric():

        print("Print one letter")

while lives > 0:
    print("Lives Left: ", lives)

    input_str = input("Guess a letter: ")
    y = input_str.isalpha()
    if y == True and len(input_str) == 1:
        for inx in range(0,len(word)):
            joining()
        print(s)
        if '-' not in s:
            print('done')
            break
        if input_str not in s:
            lives -= 1
            livesGone()
    else:
        weirdCondition()