import Tkinter

class GUI:
   def __init__(self):
      self.main_window = Tkinter.Tk()
      self.frame1 = Tkinter.Frame(self.main_window)
      self.frame2 = Tkinter.Frame(self.main_window)
      self.frame1.pack()
      self.frame2.pack()
      
      self.label_info = Tkinter.Label(self.frame1,text="Enter text:")
      self.label_result = Tkinter.Label(self.frame2,text="None")
      self.label_info.pack(side="left")
      self.label_result.pack(side="left")
      
      self.button_submit = Tkinter.Button(self.main_window,text="Enter", command=self.submit)
      
      self.button_submit.pack(side="left")
      
      self.button_clear = Tkinter.Button(self.main_window,text="Clear", command=self.clear)
      
      self.button_clear.pack(side="left")
      
      # Create the Entry object
      self.input_text = Tkinter.Entry(self.frame1, width=20)
      self.input_text.pack(side="left")
      
      self.main_window.mainloop()
   
   def submit(self):
      # The text can be retrieved from the field with the get method
      self.label_result["text"]=self.input_text.get()
      
   def clear(self):
      self.input_text.delete(0, len(self.input_text.get()))
      self.label_result["text"] = "None"
   
def main():
   demo = GUI()
   
main()