Create Exercise-31-Guess-Letters.py

Author: swsoyee

Exercise-31-Guess-Letters.py

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+'''
+Exercise 31: Guess Letters
+This exercise is Part 2 of 3 of the Hangman exercise series. 
+The other exercises are: Part 1 and Part 3.
+
+Let’s continue building Hangman. In the game of Hangman, a 
+clue word is given by the program that the player has to 
+guess, letter by letter. The player guesses one letter at a 
+time until the entire word has been guessed. (In the actual 
+game, the player can only guess 6 letters incorrectly before 
+losing).
+
+Let’s say the word the player has to guess is “EVAPORATE”.
+For this exercise, write the logic that asks a player to guess
+a letter and displays letters in the clue word that were 
+guessed correctly. For now, let the player guess an infinite
+number of times until they get the entire word. As a bonus,
+keep track of the letters the player guessed and display a 
+different message if the player tries to guess that letter
+again. Remember to stop the game when all the letters have 
+been guessed correctly! Don’t worry about choosing a word
+randomly or keeping track of the number of guesses the player
+has remaining - we will deal with those in a future exercise.
+
+An example interaction can look like this:
+
+>>> Welcome to Hangman!
+_ _ _ _ _ _ _ _ _
+>>> Guess your letter: S
+Incorrect!
+>>> Guess your letter: E
+E _ _ _ _ _ _ _ E
+...
+And so on, until the player gets the word.
+'''
+import re
+
+# Solution
+def modify_list(result, guess, answer):
+    """
+    Print all the key in dict.
+    
+    Arguments:
+    result -- a list of the show pattern word.
+    guess -- the letter of user's guess.
+    answer -- the answer of word
+    
+    Returns:
+    result -- the list of word after modified.
+    
+    """
+    guess = guess.lower()
+    answer = answer.lower()
+    if guess in answer:
+        index_list = [x.start() for x in re.finditer(guess, answer)]
+        for i in index_list:
+            result[i] = guess.upper()
+    else:
+        print("Letter '{}' is not in the word".format(guess.upper()))
+    print(' '.join(result))
+    return result
+        
+def win(word_list):
+    """
+    Check the user has guessed the right word or not.
+    
+    Arguments:
+    word_list -- the word list.
+    
+    Returns:
+    True/False -- return True if the word has been guessed right alse return false.
+    """
+    if '_' not in word_list:
+        return True
+    else:
+        return False
+
+def main():
+    right_answer = 'EVAPORATE'
+    print('Welcome to Hangman!')
+    guess_list = ['_' for i in range(len(right_answer))]
+    print(' '.join(guess_list))
+    while True:
+        guess = input('Guess your letter: ')
+        guess_list = modify_list(guess_list, guess, right_answer)
+        if win(guess_list) == True:
+            print('You win!')
+            break
+    
+if __name__ == "__main__":
+    main()
+
+# >>> %Run test.py
+# Welcome to Hangman!
+# _ _ _ _ _ _ _ _ _
+# Guess your letter: e
+# E _ _ _ _ _ _ _ E
+# Guess your letter: a
+# E _ A _ _ _ A _ E
+# Guess your letter: w
+# Letter 'W' is not in the word
+# E _ A _ _ _ A _ E
+# Guess your letter: a
+# E _ A _ _ _ A _ E
+# Guess your letter: v
+# E V A _ _ _ A _ E
+# Guess your letter: q
+# Letter 'Q' is not in the word
+# E V A _ _ _ A _ E
+# Guess your letter: w
+# Letter 'W' is not in the word
+# E V A _ _ _ A _ E
+# Guess your letter: p
+# E V A P _ _ A _ E
+# Guess your letter: o
+# E V A P O _ A _ E
+# Guess your letter: r
+# E V A P O R A _ E
+# Guess your letter: t
+# E V A P O R A T E
+# You win!