how to code a clickable button in python

1from tkinter import *
2master = Tk()
3def close_window():
4    exit()
5button = Button(master, text = 'Click me', command = close_window)
6button.pack()
7mainloop()
8

1import tkinter as tk
2    
3
4def write_slogan():
5    print("Tkinter is easy to use!")
6
7root = tk.Tk()
8frame = tk.Frame(root)
9frame.pack()
10
11button = tk.Button(frame, 
12                   text="QUIT", 
13                   fg="red",
14                   command=quit)
15button.pack(side=tk.LEFT)
16slogan = tk.Button(frame,
17                   text="Hello",
18                   command=write_slogan)
19slogan.pack(side=tk.LEFT)
20
21root.mainloop()
22