Chapter 11 - Bagels

Chapter Content and Source Code

Download the source for bagels.py.

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import random def getSecretNum(numDigits): # Returns a string that is numDigits long, made up of unique random digits. numbers = list(range(10)) random.shuffle(numbers) secretNum = '' for i in range(numDigits): secretNum += str(numbers[i]) return secretNum def getClues(guess, secretNum): # Returns a string with the pico, fermi, bagels clues to the user. if guess == secretNum: return 'You got it!' clue = [] for i in range(len(guess)): if guess[i] == secretNum[i]: clue.append('Fermi') elif guess[i] in secretNum: clue.append('Pico') if len(clue) == 0: return 'Bagels' clue.sort() return ' '.join(clue) def isOnlyDigits(num): # Returns True if num is a string made up only of digits. Otherwise returns False. if num == '': return False for i in num: if i not in '0 1 2 3 4 5 6 7 8 9'.split(): return False return True 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') NUMDIGITS = 3 MAXGUESS = 10 print('I am thinking of a %s-digit number. Try to guess what it is.' % (NUMDIGITS)) print('Here are some clues:') print('When I say: That means:') print(' Pico One digit is correct but in the wrong position.') print(' Fermi One digit is correct and in the right position.') print(' Bagels No digit is correct.') while True: secretNum = getSecretNum(NUMDIGITS) print('I have thought up a number. You have %s guesses to get it.' % (MAXGUESS)) numGuesses = 1 while numGuesses <= MAXGUESS: guess = '' while len(guess) != NUMDIGITS or not isOnlyDigits(guess): print('Guess #%s: ' % (numGuesses)) guess = input() clue = getClues(guess, secretNum) print(clue) numGuesses += 1 if guess == secretNum: break if numGuesses > MAXGUESS: print('You ran out of guesses. The answer was %s.' % (secretNum)) if not playAgain(): break

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Copyright © 2008, 2009, 2010 by Albert Sweigart
"Invent Your Own Computer Games with Python" 2nd Edition is free to copy and distribute under the Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License.