Tkinker Python Tutorial

from Tkinter  import *
class MyApp:                        
  def __init__(self, myParent):
    self.myContainer1 = Frame(myParent)
    self.myContainer1.pack()
    
    self.button1 = Button(self.myContainer1) 
    self.button1["text"]= "Hello, World!"     
    self.button1["background"] = "green"      
    self.button1.pack()                         
    
root = Tk()
myapp = MyApp(root) 
root.mainloop()