Untitled

from tkinter import *

root = Tk()
root.title("Leap Year Checker")


def checkLeapYear(year):
	if(year % 4 == 0):
		if(year % 100 == 0):
			if(year % 400 == 0):
				label.config(text="The year is a leap year")
			else:
				label.config(text="The year is not a leap year")
	else:
		e.insert(0, "The year is not a leap year")


e = Entry(root, borderwidth=5)
e.grid(row=0, column=0)
year = int(e.get())

checkButton = Button(root, text="Check", padx=20, pady=3, command=lambda:checkLeapYear(year))
checkButton.grid(row=0, column=1)

label = Label(root)
label.grid(row=1, column=0, columnspan=2)
label.configure(anchor=CENTER)

root.mainloop()