関数内のguesses_remainingを共有するやり方がわかりません。

hangman(secret_word)内のguesses_remainingをget_guessed_word(secret_word, letters_guessed)でも続けて使える？共有するやり方を教えてください。語彙力がなくてごめんなさい。

python
17# Problem Set 2, hangman.py
2# Name: 
3# Collaborators:なし
4# Time spent:4時間
5
6# Hangman Game
7# -----------------------------------
8# Helper code
9# You don't need to understand this helper code,
10# but you will have to know how to use the functions
11# (so be sure to read the docstrings!)
12import random
13import string
14
15WORDLIST_FILENAME = "words.txt"
16
17
18
19def load_words():
20    """
21    Returns a list of valid words. Words are strings of lowercase letters.
22    
23    Depending on the size of the word list, this function may
24    take a while to finish.
25    """
26    print("Loading word list from file...")
27    # inFile: file
28    inFile = open(WORDLIST_FILENAME, 'r')
29    # line: string
30    line = inFile.readline()
31    # wordlist: list of strings
32    wordlist = line.split()
33    print("  ", len(wordlist), "words loaded.")
34    return wordlist
35
36
37
38def choose_word(wordlist):
39    """
40    wordlist (list): list of words (strings)
41    
42    Returns a word from wordlist at random
43    """
44    return random.choice(wordlist)
45
46# end of helper code
47
48# -----------------------------------
49
50# Load the list of words into the variable wordlist
51# so that it can be accessed from anywhere in the program
52wordlist = load_words()
53
54
55def is_word_guessed(secret_word, letters_guessed):
56    '''
57    secret_word: string, the word the user is guessing; assumes all letters are
58      lowercase
59    letters_guessed: list (of letters), which letters have been guessed so far;
60      assumes that all letters are lowercase
61    returns: boolean, True if all the letters of secret_word are in letters_guessed;
62      False otherwise
63    '''
64    i=0
65    for char_1 in secret_word:
66        i+=1
67        if char_1 not in letters_guessed:
68            return False
69            break
70        elif i==len(secret_word):
71            return True
72        
73        
74
75
76
77def get_guessed_word(secret_word, letters_guessed):
78    '''
79    secret_word: string, the word the user is guessing
80    letters_guessed: list (of letters), which letters have been guessed so far
81    returns: string, comprised of letters, underscores (_), and spaces that represents
82      which letters in secret_word have been guessed so far.
83    '''
84    listed_secret_word=list(secret_word)
85    for i in range(len(listed_secret_word)):
86        character_1=listed_secret_word[i]
87        if character_1 in letters_guessed:
88            continue
89        else:
90            listed_secret_word[i]='_ '
91    if s in listed_secret_word:
92        return 'Good guess:'+''.join(listed_secret_word)
93    else:
94        guesses_remaining+=1
95        return 'Oops! That letter is not in my word:'+''.join(listed_secret_word)
96
97
98def get_available_letters(letters_guessed):
99    '''
100    letters_guessed: list (of letters), which letters have been guessed so far
101    returns: string (of letters), comprised of letters that represents which letters have not
102      yet been guessed.
103    '''
104    xyz=["a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"]
105    for i in range(len(letters_guessed)):
106        character_2=letters_guessed[i]
107        xyz.remove(character_2)
108    return str(''.join(xyz))
109
110    
111    
112
113def hangman(secret_word):
114    '''
115    secret_word: string, the secret word to guess.
116    
117    Starts up an interactive game of Hangman.
118    
119    * At the start of the game, let the user know how many 
120      letters the secret_word contains and how many guesses s/he starts with.
121    
122    
123    * The user should start with 6 guesses
124
125    * Before each round, you should display to the user how many guesses
126      s/he has left and the letters that the user has not yet guessed.
127    
128    * Ask the user to supply one guess per round. Remember to make
129      sure that the user puts in a letter!
130    
131    * The user should receive feedback immediately after each guess 
132      about whether their guess appears in the computer's word.
133
134    * After each guess, you should display to the user the 
135      partially guessed word so far.
136    
137    Follows the other limitations detailed in the problem write-up.
138    '''
139    
140    guesses_remaining=0
141    print('Welcome to the game Hangman!' )
142    print('I am thinking of a word that is '+ str(len(secret_word)) + ' letters long.' )
143    while(guesses_remaining!=6):
144        print('-------------')
145        print('You have',str(6-guesses_remaining),'guesses left.') 
146        print('Available letters:'+get_available_letters(letters_guessed))
147        s=input('Please guess a letter:')
148        letters_guessed.append(s)
149        print(get_guessed_word(secret_word, letters_guessed))
150
151if __name__ == "__main__":
152    # pass
153
154    # To test part 2, comment out the pass line above and
155    # uncomment the following two lines.
156    secret_word = choose_word(wordlist)
157    guesses_remaining=0
158    letters_guessed=[]
159    s=''
160    hangman(secret_word)