Notes:
Lesson 3.2: MasterPy
We’ve had a warm up, so let’s see if we can create a game using Python. Have you ever played the Mastermind game, where you have to guess the hidden colours? We can do the same here, but with letters rather than coloured pegs. It will also give us the chance to work with some text in and text out commands.
Here’s the code that we’re going to use:
import string import random # create a list of 4 characters secret = [random.choice( 'ABCDEF' ) for item in range (4)] # tell the player what is going on print ( "I've selected a 4-character secret code from the letters A,B,C,D,E and F." ) print ( "I may have repeated some." ) print ( "Now, try and guess what I chose." ) yourguess = [] while list (yourguess) != secret: yourguess = input ( "Enter a 4-letter guess: e.g. ABCD : " ).upper() if len (yourguess) != 4: continue # turn the guess into a list, like the secret print ( "You guessed " , yourguess) # create a list of tuples comparing the secret with the guess comparingList = zip (secret, yourguess) # create a list of the letters that match # (this will be 4 when the lists match exactly) correctList = [speg for speg, gpeg in comparingList if speg == gpeg] # count each of the letters in the secret and the guess # and make a note of the fewest in each fewestLetters = [ min (secret.count(j), yourguess.count(j)) for j in 'ABCDEF' ] print ( "Number of correct letter is " , len (correctList)) print ( "Number of unused letters is " , sum (fewestLetters) - len (correctList)) print ( "YOU GOT THE ANSWER : " , secret)
Tip...
Here, again, you can see lines of code that don’t fit on one line. Don’t press Return to start a new line, just let it word wrap and Python will work it out for you.
Can you guess the number sequence set by the computer? The computer selects a sequence of four letters from a set of six. You enter a sequence of four letters that you think the computer selected and it will report how many were exactly right, and how many are in the sequence but are in the wrong position.
Experiments in Python
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