hangman in python

import sys, random
game = True
#filename = sys.argv[0]
filename = "words"

# READING CONTENT
content = open(filename, "r").readlines()
for i in range(len(content)):
    content[i] = content[i].strip()

# main loop
while game:
    random.shuffle(content)
    word = list(content[0])
    shown_word = list("".join("_" for i in word))

    # guessing loop
    while True:
        while True:
            print(" ".join(shown_word))
            guess = input("> ")
            if len(guess) == 1:
                break
        if guess in word:
            for i in range(len(word)):
                shown_word[i] = word[i] if guess == word[i] else shown_word[i]
        if shown_word == word:
            break
    print("Guessed it!")