Hangman tkinter

import random
import tkinter as tk
from tkinter import messagebox as msg


three_worded_list = (
    "cat",
    "rat",
    "ink",
    "aid",
)

four_worded_list = (
    "java",
    "will",
)

five_worded_list = (
    "Brick",
    "Prick",
)


six_worded_list = (
    "Babies",
    "Cactus",
)

seven_worded_list = (
    "Abdomen",
    "Baboons",
)

eight_worded_list = (
    "Intellij",
    "Aardvark",
)

letters = ['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']
hang_font=("Arial", 20)

class Hangman(tk.Tk):

    def __init__(self):
        self.welcome_options()
        self.user_dif = None
        while self.user_dif not in ["1", "2", "3"]:
            self.user_dif = input("\nChoose difficulty by number input (press 0 to exit): ")
            if self.user_dif == "1":
                self.wordList = three_worded_list + four_worded_list
                self.max_life = 10
            elif self.user_dif == "2":
                self.wordList = five_worded_list + six_worded_list
                self.max_life = 6
            elif self.user_dif == "3":
                self.wordList = seven_worded_list + eight_worded_list
                self.max_life = 3
            elif self.user_dif == "0":
                print("exiting...")
                return
            else:
                print("\nThat is not a valid difficulty")
        super().__init__()
        self.draw_keyboard()
        self.setup_game()
        self.revealed_label = tk.Label(self, text = f"word : {self.revealed_letters}", font=hang_font)
        self.revealed_label.pack()
        self.lives_label = tk.Label(self, text = f" remaining tries: {self.life}", font=hang_font)
        self.lives_label.pack()



    def setup_game(self):
        self.word = random.choice(self.wordList)
        self.word = self.word.lower()
        self.letters_in_word = [*self.word]
        self.revealed_letters = [*(len(self.word)*'_')]
        self.guessed_letters = []
        self.life = self.max_life

    def welcome_options(self):
        print("\nWelcome to Hangman\n")
        print("1. " + "Noobie (10 lives)")
        print("2. " + "Intermediate (6 lives)")
        print("3. " + "Expert (3 lives)")


    def draw_keyboard(self):
        self.keyboard = tk.Toplevel()
        self.keyboard.geometry('800x200')
        n = 0
        for letter in letters:
            tk.Button(self.keyboard, text=letter, command=lambda guess=letter: self.check(guess),
                   font=('Helvetica 18'), width=4).grid(row=1+n//9, column=n % 9)
            n += 1

    def check(self, guess):
        if guess in self.letters_in_word:
            for index, char in enumerate(self.letters_in_word):
                if guess == char:
                    self.revealed_letters.insert(index,char)
                    self.revealed_letters.pop(index+1)

        else:
            self.life -= 1
            self.guessed_letters.append(guess)
            print("You guessed wrong")
            print(self.guessed_letters)
        if self.life < 1:
            msg.showerror(title= ":(", message=f"You have lost the game, the word was {self.word}")
            self.setup_game()

        if self.letters_in_word == self.revealed_letters:
            msg.showinfo(title="congratulations", message="you have won")
            print(f'revealed letters: {self.revealed_letters}')
            self.setup_game()
        self.revealed_label.configure(text =  f"word : {self.revealed_letters}")
        self.lives_label.configure(text= f" remaining tries: {self.life}")



h = Hangman()
h.mainloop()