Python letter game exercise not running properly for me

import random

fruits = [
    'strawberry',
    'melon',
    'apple',
    'blueberry',
    'grape',
    'lemon',
    'starfruit',
    'banana',
    'orange',
    'lime',
]

while True:
    start = input("Press enter/return to start, or hit Q to quit the game.")
    if start.lower() == 'q':
        break

    secret_word = random.choice(fruits)
    bad_guesses = []
    good_guesses = []

    while len(bad_guesses) < 7 and len(good_guesses) != len(list(secret_word)):
        for letter in secret_word:
            if letter in good_guesses:
                print(letter, end='')
            else:
                print('_', end='')
        print('')
        print("Strike {}/7".format(len(bad_guesses)))
        print('')
        guess = input("Guess a letter: ").lower()
        if len(guess) != 1:
            print("You can only guess one letter at a time!")
            continue
        elif guess in good_guesses or bad_guesses:
            print("You've already used that letter!")
            continue
        elif not guess.isalpha():
            print("You can only guess letters!")
            continue
        elif guess in secret_word:
            good_guesses.append(guess)
            if len(good_guesses) == len(list(secret_word)):
                print("You win! The secret word was {}!".format(secret_word))
                break
        else:
            bad_guesses.append(guess)
    else:
        print("You didnt get it! My secret word was {}.".format(secret_word))