hangman

def insert_word():
    print("Input Sentence:")
    word = input()
    word_list = []
    for letter in word:
        word_list.append(letter)
    return word_list


def word_underscore_converter(word_list):
    underscored_list = []
    upper_string = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
    for letter in word_list:
        if letter in upper_string:
            underscored_list.append("_")
        elif letter in " ":
            underscored_list.append(" ")
    return underscored_list


def underscore_num_checker(word_list):
    counter = 0
    for letter in word_list:
        if letter == '_':
            counter += 1
    return counter


def hangman_game(word_list, underscored_word, underscored_num):
    is_word_incomplete = True
    underscored_change = 0
    while is_word_incomplete:
        print("Input letter:")
        letter = input()
        counter = 0
        for i in word_list:
            if i == letter:
                underscored_word[counter] = letter
                underscored_change += 1
                print(underscored_word)
                counter += 1
            elif i != letter:
                counter += 1

        if underscored_num == underscored_change:
            print("Sentence Completed!")
            is_word_incomplete = False


print("***THIS GAME IS PLAYED IN ALL UPPER CASE LETTERS***")
word_listed = insert_word()
word_underscored = word_underscore_converter(word_listed)
underscore_count = underscore_num_checker(word_underscored)
print("word_listed is: {}".format(word_listed))
print("word_underscored is: {}".format(word_underscored))
print("This word has {} underscores".format(underscore_count))
hangman_game(word_listed, word_underscored, underscore_count)