hangman

#!/usr/bin/env python3.3
# -*- coding: utf-8 -*-
 
"""A Hangman Demo for Python3 form yipyip. Guess some python3 keywords !
see https://gist.github.com/yipyip/6038584 for original code
"""

####

import random

####

def hangman(solution, percent=0, placeholder='_', prompt='? '):
    """Hangman game loop.
    """ 
    task = make_task(solution, percent, placeholder)
  
    while placeholder in task:
        print(task)
        guess = input(prompt)
        if not guess:
            continue
        
        guess0 = guess[0]
        task = ''.join(guess0 if guess0 == solution_char else task_char
                       for task_char, solution_char in zip(task, solution))
    else:
        print(task)

####

def make_task(solution, percent, placeholder):
    """Return list of chars to guess.
    """ 
    task_len = len(solution)
    show_len = int(task_len * percent / 100.0)
    chars = [1] * show_len + [0] * (task_len - show_len)
    random.shuffle(chars)
    return ''.join(char if i else placeholder for char, i in zip(solution, chars))

####

def get_words(placeholder):
    """Return list of words to guess.
    """
    import builtins
    return [s.lower() for s in builtins.__dict__ \
            if not placeholder in s]

####
    
def main(conf):
    """Play multiple rounds of hangman.
    """
    words = get_words(conf['placeholder'])
 
    while words:
        task = random.choice(words)
        hangman(task, **conf)
        print("You got it!")
        words.remove(task)
   
        if not input("Again? [y|n] ") == "y":
            break
    else:
        print("Nothing left.")
  
####
   
CONFIG = {'percent': 25,
          'placeholder': '_',
          'prompt': "Lowercase letter? "}

if __name__ == '__main__':

    main(CONFIG)