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#1 2010-02-07 03:14:57

Mega-G33k
Member
From: Indiana, USA
Registered: 2009-09-14
Posts: 42

[SOLVED] Python: Need help modifying program to use dictionaries

I have been reading the book on this website http://inventwithpython.com/chapters/ but am having problems with the modifications for hangman at the end of chapter 8.
In  the definition for 'getRandomWord" the statement

wordKey = random.choice(wordDict.keys())

returns the error

TypeError: 'dict_keys' object does not support indexing

I solved this by changing the statement to

wordKey = random.choice(list(wordDict.keys()))

now the game plays but if you win it doesn't give the winning message, quits when given an incorrect guess, and won't quit when I type "no" to the question "Do you want to play again".  I can't figure out whats causing this to happen.

And sorry if that explanation didn't make sense.  I wasn't sure how to explain it.

Heres the program code:

import random
HANGMANPICS = ['''

  +---+
  |   |
      |
      |
      |
      |
=========''', '''

  +---+
  |   |
  O   |
      |
      |
      |
=========''', '''

  +---+
  |   |
  O   |
  |   |
      |
      |
=========''', '''

  +---+
  |   |
  O   |
 /|   |
      |
      |
=========''', '''

  +---+
  |   |
  O   |
 /|\  |
      |
      |
=========''', '''

  +---+
  |   |
  O   |
 /|\  |
 /    |
      |
=========''', '''

  +---+
  |   |
  O   |
 /|\  |
 / \  |
      |
=========''']
words = {'Colors':'red orange yellow green blue indigo violet white black brown'.split(),
'Shapes':'square triangle rectangle circle ellipse rhombus trapazoid chevron pentagon hexagon septagon octogon'.split(),
'Fruits':'apple orange lemon lime pear watermelon grape grapefruit cherry banana cantalope mango strawberry tomato'.split(),
'Animals':'bat bear beaver cat cougar crab deer dog donkey duck eagle fish frog goat leech lion lizard monkey moose mouse otter owl panda python rabbit rat shark sheep skunk squid tiger turkey turtle weasel whale wolf wombat zebra'.split()}

def getRandomWord(wordDict):
    # This function returns a random string from the passed dictionary of lists of strings, and the key also.
    
    # First, randomly select a key from the dictionary:
    wordKey = random.choice(wordDict.keys())

    # Second, randomly select a word from the key's list in the dictionary:
    wordIndex = random.randint(0, len(wordDict[wordKey]) - 1)
    return [wordDict[wordKey] [wordIndex], wordKey]

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

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

    blanks = '_' * len(secretWord)

    for i in range(len(secretWord)): # Replace blanks with correctly guessed letters.
        if secretWord[i] in correctLetters:
            blanks = blanks[:i] + secretWord[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
    while True:
        print('Guess a letter.')
        guess = input()
        guess = guess.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 playAgain():
    # This function returns True if the player wants to play again, otherwise it returns False.
    print('Do you want to play again? (yes or no)')
    return input().lower().startswith('y')

print('H A N G M A N')
missedLetters = ''
correctLetters = ''
secretWord = getRandomWord(words)
secretKey = secretWord[1]
secretWord = secretWord[0]
gameIsDone = False

while True:
    print('The secret word is in the set: ' + secretKey)
    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.
        foundAllLetters = True
        for i in range(len(secretWord)):
            if secretWord[i] not in correctLetters:
                foundAllLetters = False
                break
        if foundAllLetters:
            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 gameis done).
        if gameIsDone:
            if playAgain():
                missedLetters = ''
                correctLetters = ''
                gameIsDone = False
                secretWord = getRandomWord(words)
                secretKey = secretWord[1]
                secretWord = secretWord[0]
        else:
            break

Last edited by Mega-G33k (2010-02-07 04:36:27)

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#2 2010-02-07 04:04:24

Trent
Member
From: Baltimore, MD (US)
Registered: 2009-04-16
Posts: 990

Re: [SOLVED] Python: Need help modifying program to use dictionaries

I think your final else: break wants to be indented by four more spaces.  I haven't yet looked at it properly; maybe tomorrow I can assist more if you're still having trouble

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#3 2010-02-07 04:26:14

Mega-G33k
Member
From: Indiana, USA
Registered: 2009-09-14
Posts: 42

Re: [SOLVED] Python: Need help modifying program to use dictionaries

Thank you very much!  I probably wouldn't have caught that error.  The hardest errors to find are generally the simplest to fix.

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