from Tkinter import *
class Hello(Frame):
def __init__(self, parent=None):
Frame.__init__(self, parent)
self.pack()
self.data = 42
self.make_widgets()
def make_widgets(self):
widget = Button(self, text='Hello frame world!', command=self.message)
widget.pack(side=LEFT)
def message(self):
self.data += 1
print 'Hello frame world %s!' % self.data
Hello().mainloop()