In [7]:
import random

HANGMANPICS = ['''

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=========''', '''

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=========''', '''

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=========''', '''

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=========''', '''

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  O   |
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=========''', '''

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  O   |
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=========''', '''

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=========''']
words = 'ant baboon badger bat bear beaver camel cat clam cobra cougar coyote crow deer dog donkey duck eagle ferret fox frog goat goose hawk lion lizard llama mole monkey moose mouse mule newt otter owl panda parrot pigeon python rabbit ram rat raven rhino salmon seal shark sheep skunk sloth snake spider stork swan tiger toad trout turkey turtle weasel whale wolf wombat zebra'.split()

def getRandomWord(wordList):
    # This function returns a random string from the passed list of strings.
    wordIndex = random.randint(0, len(wordList) - 1)
    return wordList[wordIndex]

def displayBoard(HANGMANPICS,missedLetters, correctLetters, sw):
    print(HANGMANPICS[len(missedLetters)])
    print()

    print('Missed letters:', end=' ')
    for letter in missedLetters:
        print(letter, end=' ')
    print()

    blanks = '_' * len(sw)

    for i in range(len(sw)): # replace blanks with correctly guessed letters
        if sw[i] in correctLetters:
            blanks = blanks[:i] + sw[i] + blanks[i+1:]

    for letter in blanks: # show the secret word with spaces in between each letter
        print(letter, end=' ')
    print()

def getGuess(alreadyGuessed):
    # Returns the letter the player entered. This function makes sure the player 
    # entered a single letter, and not something else and also not one which has already been guessed.
    while True:
        guess = input('Guess a letter: ').lower()
        if len(guess) != 1:
            print('Please enter a single letter.')
        elif guess in alreadyGuessed:
            print('You have already guessed that letter. Choose again.')
        elif guess not in 'abcdefghijklmnopqrstuvwxyz':
            print('Please enter a LETTER.')
        else:
            return guess

def gameWon(secretWord,correctLetters):
    # This function returns True if game is won, False otherwise
    for i in range(len(secretWord)):
        if secretWord[i] not in correctLetters:
            return False
    return True

def playAgain():
    # This function returns True if the player wants to play again, otherwise it returns False.
    return input('Do you want to play again? (yes or no): ').lower().startswith('y')

def main():
    print('H A N G M A N')

    missedLetters = ''
    correctLetters = ''
    gameIsDone = False
    secretWord = getRandomWord(words)
    #print(secretWord)
    
    while not gameIsDone:
        displayBoard(HANGMANPICS,missedLetters, correctLetters, secretWord)

        # Let the player type in a letter.
        guess = getGuess(missedLetters + correctLetters)

        if guess in secretWord:
            correctLetters = correctLetters + guess
            # Check if the player has won
            if gameWon(secretWord,correctLetters):
                print('Yes! The secret word is "' + secretWord + '"! You have won!')
                gameIsDone = True
        else:
            missedLetters = missedLetters + guess
            # Check if player has guessed too many times and lost
            if len(missedLetters) == len(HANGMANPICS) - 1:
                displayBoard(HANGMANPICS,missedLetters, correctLetters, secretWord)
                print('You have run out of guesses!\nAfter ' + \
                    str(len(missedLetters)) + ' missed guesses and ' + \
                    str(len(correctLetters)) + ' correct guesses, the word was "' + \
                    secretWord + '"')
                gameIsDone = True

        # Ask the player if they want to play again (but only if the game is done).
        if gameIsDone:
            if playAgain():
                missedLetters = ''
                correctLetters = ''
                gameIsDone = False
                secretWord = getRandomWord(words)
                #print(secretWord)
            else:
                gameIsDone = True

main()
H A N G M A N


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=========

Missed letters: 
_ _ _ _ 

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=========

Missed letters: f 
_ _ _ _ 

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=========

Missed letters: f 
_ _ _ l 

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=========

Missed letters: f 
s _ _ l 

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=========

Missed letters: f 
s e _ l 
Yes! The secret word is "seal"! You have won!
In [5]:
blanks = '______'
i = 3
blanks[:i] + 'x' + blanks[i+1:]
Out[5]:
'___x__'
In [ ]: