Minesweeper made quick

# MINESWEEPER MADE QUICK
# made in an hour
# Python 3 required

import tkinter as tk
from functools import partial
import random

root = tk.Tk()
root.wm_title("MINESWEEPER MADE QUICK")
root.resizable(width=False, height=False)

class GameState:
    Play = 0
    Dead = 1

class Application(tk.Frame):
    def __init__(self, master=None):
        super().__init__(master, height=512, width=512)
        self.pack_propagate(0)
        self.pack(fill=tk.BOTH, expand=1)
        self.width = 8
        self.height = 8
        self.bombs = [[False]*self.width for i in range(self.height)]
        self.explored = [[False]*self.width for i in range(self.height)]
        self.flagged = [[False]*self.width for i in range(self.height)]
        self.widgets = [[None]*self.width for i in range(self.height)]
        self.create_widgets()
        self.state = None
        self.start_new_game()

    def start_new_game(self):
        self.state = GameState.Play
        self.bombs = [[False]*self.width for i in range(self.height)]
        self.explored = [[False]*self.width for i in range(self.height)]
        self.flagged = [[False]*self.width for i in range(self.height)]
        for j in range(self.height):
            for i in range(self.width):
                self.bombs[j][i] = random.random()>0.9
        self.update_board()

    def create_widgets(self):
        for j in range(self.height):
            for i in range(self.width):
                b = tk.Button(self, text=" ", command=partial(self.click, i,j), padx=2, pady=2, width = 2)
                b.grid_propagate(0)
                b.bind("<Button-3>", partial(self.rclick,i,j))
                b.grid(row=j,column=i, sticky=tk.W+tk.E+tk.S + tk.N)
                self.widgets[j][i] = b

    def rclick(self, i, j, event):
        if self.state == GameState.Play:
            self.flagged[j][i] = not self.flagged[j][i]
            self.update_board()

    def click(self, i, j):
        if self.state == GameState.Play:
            button = self.widgets[j][i]
            bomb = self.bombs[j][i]
            self.explored[j][i] = True
            if bomb:
                self.state = GameState.Dead
                self.you_lose()
            else:
                # floodto empty cells
                cells = [(i,j)]
                flooded = [(i,j)]
                while len(cells):
                    ci, cj = cells.pop()
                    flooded.append((ci,cj))
                    self.explored[cj][ci] = True
                    for di in [-1,0,1]:
                        for dj in [-1,0,1]:
                            if abs(di)+abs(dj)!=1: continue
                            ni, nj = ci + di, cj + dj
                            if 0<=ni<self.width and 0<=nj<self.height:
                                if (ni,nj) not in flooded and not self.bombs[nj][ni]:
                                    count = self.neighbour_bombs(ni,nj)
                                    if count==0:
                                        cells.append((ni,nj))
                                    else:
                                        self.explored[nj][ni] = True

            self.update_board()
            if self.check_win():
                self.state = GameState.Dead
                self.you_win()
        else:
            self.start_new_game()

    def neighbour_bombs(self, i, j):
        nb = 0
        for di in [-1,0,1]:
            for dj in [-1,0,1]:
                ni, nj = i + di, j + dj
                nb += self.bombs[nj][ni] if (0<=ni<self.width and 0<=nj<self.height) else 0
        return nb

    def update_board(self):
        for j in range(self.height):
            for i in range(self.width):
                button = self.widgets[j][i]
                bomb = self.bombs[j][i]
                if self.state == GameState.Dead:
                    if bomb:
                        button.config(text = "@")
                    else:
                        if self.explored[j][i]:
                            count = self.neighbour_bombs(i, j)
                            button.config(text = count or " ")
                else:
                    if self.explored[j][i]:
                        if bomb:
                            button.config(text = "@")
                        else:
                            count = self.neighbour_bombs(i, j)
                            button.config(text = count or " ")
                        button.config(relief=tk.SUNKEN)
                    elif self.flagged[j][i]:
                        button.config(text = "F")
                    else:
                        button.config(text = " ")
                        button.config(relief=tk.RAISED)

    def check_win(self):
        # only bombs are unexplored
        for j in range(self.height):
            for i in range(self.width):
                explored = self.explored[j][i]
                bomb = self.bombs[j][i]
                if (explored and not bomb) or (bomb and not explored):
                    pass
                else:
                    return False
        return True

    def you_win(self):
        toplevel = tk.Toplevel()
        label1 = tk.Label(toplevel, text="YOU WIN!", height=3, width=8)
        label1.pack()
        toplevel.focus_set()
        toplevel.transient(root)
        toplevel.grab_set()
        root.wait_window(toplevel)

    def you_lose(self):
        toplevel = tk.Toplevel()
        label1 = tk.Label(toplevel, text="YOU LOSE!", height=3, width=8)
        label1.pack()
        toplevel.focus_set()
        toplevel.transient(root)
        toplevel.grab_set()
        root.wait_window(toplevel)

app = Application(master=root)
app.mainloop()