My program should destroy btn1 and create it again after one second in loop. I don't no why but my program only destroy btn1 and don't show this again. Anyone have idea why?
from tkinter import *
import random
def hide():
btn1.destroy()
btn1.after(2000,hide)
def show():
btn1 = Button(root, bd=c, text="Hello\nWorld", relief="ridge", cursor="trek")
btn1.grid(row=0,column=0)
btn1.after(3000,show)
root = Tk()
root.geometry("350x150+400+400")
c=random.randint(20,40)
btn1 = Button(root, bd=c, text="Hello\nWorld", relief="ridge", cursor="trek")
btn1.grid(row=0,column=0)
btn1.after(2000,hide)
btn1.after(3000,show)
root.mainloop()