Tic-Tac-Toe.py

from tkinter import *
import tkinter.messagebox
tk = tkinter.TK() 
tkinter.title("Tic Tac Toe")

click = True

def checker ( buttons ) :
    global click
    if buttons["text"] == " " and click == True:
        buttons ["text"] = "X"
        click = False
    elif buttons["text'"] == " " and click == False:
        buttons["text"] = "O"
        click = True
    elif (button1["text"] == "X" and button2["text"] == "X" and button3["text"]=="X" or
          button4["text"] == "X" and button5["text"] == "X" and button6["text"]=="X" or
          button7["text"] == "X" and button8["text"] == "X" and button9["text"]=="X" or
          button3["text"] == "X" and button5["text"] == "X" and button7["text"]=="X" or
          button1["text"] == "X" and button4["text"] == "X" and button7["text"]=="X" or
          button1["text"] == "X" and button5["text"] == "X" and button9["text"]=="X" or
          button2["text"] == "X" and button5["text"] == "X" and button8["text"]=="X" or
          button3["text"] == "X" and button6["text"] == "X" and button9["text"]=="X"):
        tkinter.messagebox.showinfo("Winner X", "You have just won a game")
    elif (button1["text"] == "O" and button2["text"] == "O" and button3["text"]=="O" or
          button4["text"] == "O" and button5["text"] == "O" and button6["text"]=="O" or
          button7["text"] == "O" and button8["text"] == "O" and button9["text"]=="O" or
          button3["text"] == "O" and button5["text"] == "O" and button7["text"]=="O" or
          button1["text"] == "O" and button4["text"] == "O" and button7["text"]=="O" or
          button1["text"] == "O" and button5["text"] == "O" and button9["text"]=="O" or
          button2["text"] == "O" and button5["text"] == "O" and button8["text"]=="O" or
          button3["text"] == "O" and button6["text"] == "O" and button9["text"]=="O"):
        tkinter.messagebox.showinfo("Winner O", "You have just won a game")

buttons = StringVar()

button1 = Button (tk , text= " ", font=('Times 26 bold'), height = 4 , width =  8 , command=lambda:checker(button1))

button1.grid(row=1, column= 0, sticky = S+N+E+W)

button2 = Button (tk , text= " ", font=('Times 26 bold'), height = 4 , width =  8 , command=lambda:checker(button2))

button2.grid(row=1, column= 1, sticky = S+N+E+W)

button3 = Button (tk , text= " ", font=('Times 26 bold'), height = 4 , width =  8 , command=lambda:checker(button3))

button3.grid(row=1, column= 2, sticky = S+N+E+W)

button4 = Button (tk , text= " ", font=('Times 26 bold'), height = 4 , width =  8 , command=lambda:checker(button4))

button4.grid(row=2, column= 0, sticky = S+N+E+W)

button5 = Button (tk , text= " ", font=('Times 26 bold'), height = 4 , width =  8 , command=lambda:checker(button5))

button5.grid(row=2, column= 1, sticky = S+N+E+W)

button6 = Button (tk , text= " ", font=('Times 26 bold'), height = 4 , width =  8 , command=lambda:checker(button6))

button6.grid(row=2, column= 2, sticky = S+N+E+W)

button7 = Button (tk , text= " ", font=('Times 26 bold'), height = 4 , width =  8 , command=lambda:checker(button7))

button7.grid(row=3, column= 0, sticky = S+N+E+W)

button8 = Button (tk , text= " ", font=('Times 26 bold'), height = 4 , width =  8 , command=lambda:checker(button8))

button8.grid(row=3, column= 1, sticky = S+N+E+W)

button9 = Button (tk , text= " ", font=('Times 26 bold'), height = 4 , width =  8 , command=lambda:checker(button9))

button9.grid(row=3, column= 2, sticky = S+N+E+W)


tk.mainloop()