how to click on button in tkinter code example

Example 1: add button python

from tkinter import *


master = Tk()

#program you want the button to execute
def closewindow():
    exit()

#set up button
button = Button(master, text="close window", command=closewindow)

button.pack()

mainloop()

Example 2: buttons on canvas tkinter

# ... snip ...
button1 = Button(self, text = "Quit", command = self.quit, anchor = W)
button1.configure(width = 10, activebackground = "#33B5E5", relief = FLAT)
button1_window = canvas1.create_window(10, 10, anchor=NW, window=button1)