add button python

1from tkinter import *
2
3wow = Tk()
4
5def ree(hi):
6  print(hi)
7  
8w = Button ( master=wow, command=ree('hi'), text="hi" )
9
10Output:
11  Tkinter:
12    ______
13   [  hi  ] <--- Button
14    ------
15  
16  Shell:
17    hi <--- on button pressed

1from tkinter import *
2
3
4master = Tk()
5
6#program you want the button to execute
7def closewindow():
8    exit()
9
10#set up button
11button = Button(master, text="close window", command=closewindow)
12
13button.pack()
14
15mainloop()
16

1import Tkinter
2import tkMessageBox
3
4top = Tkinter.Tk()
5
6def helloCallBack():
7   tkMessageBox.showinfo( "Hello Python", "Hello World")
8
9B = Tkinter.Button(top, text ="Hello", command = helloCallBack)
10
11B.pack()
12top.mainloop()