#!/usr/bin/python3
# -*- coding: utf-8 -*-
"""Play hangman."""
from __future__ import division, print_function
import random, os, sys


hangman = """
  1222222
  1     3
  1     3
  1    444
  1    4 4
  1     4 
  1     5
  1   65557
  1  6  5  7
  1  6  5  7
  1     5
  1    8 9
  1    8 9
  1    8 9
  1"""[1:]

def play(filename="/usr/share/dict/words"):
    with open(filename) as f:
        words = [w for w in (w.split()[-1].strip() for w in f)
                 if all('a' <= c <= 'z' for c in w)]

    word = random.choice(words)
    missed = 0
    guessed = set()

    print("\033[2J")            # ANSI clear screen escape sequence

    while any(letter not in guessed for letter in word) and missed < 9:
        print("\033[H" + ''.join('\n' if c == '\n' else
                                 ' ' if c == ' ' or int(c) > missed else
                                 '#'
                                 for c in hangman))
        print(' '.join(letter if letter in guessed else '_' for letter in word))
        
        print("Guess a letter: ", end="")
        sys.stdout.flush()
        letter = sys.stdin.read(1).lower()

        if letter in guessed or letter not in word:
            missed += 1

        guessed.add(letter)

    print()

    if any(letter not in guessed for letter in word):
        print("LOSER.")

    else:
        print("You win, so what.")

    print("It was", repr(word) + '.')

        
if __name__ == "__main__":
    os.system("stty cbreak")
    try:
        if len(sys.argv) > 1:
            play(sys.argv[1])
        else:
            play()
    finally:
        os.system("stty -cbreak")