Hangman

import random
import sys

word = ['adult','pen','apple']
secret = random.choice(word)

play = 'yes'
while play is 'yes':
    guesses = ''
    turns = 5
    alphabet = ["a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z",
        'adult','pen','apple']
    wannaplay = ''
    done = False

    while(done is False):
        wannaplay = raw_input('Wanna play hangman?(yes or no): ')
        while(done is not True):
            if (wannaplay == 'yes'):
                print(wannaplay)
                while turns > 0:
                    missed = 0
                    for letter in secret:
                        if letter in guesses:
                            print letter,
                        else:
                            print '_',
                            missed += 1

                    print

                    if missed == 0:
                        print 'You win!'
                        done = True
                        break

                        break

                    guess = raw_input('guess a letter: ')
                    guesses += guess
                    if guess not in alphabet:
                        print 'error: Not a letter'
                    else:
                        break

                        if guess not in secret:
                            turns -= 1
                            print 'Nope.'
                            print turns, 'more turns'
                            if turns == 0:
                                print 'The answer is', secret
                            else:
                                done = True
                                break

            else:
                done = True
                sys.exit()