Decorator Recipe: Event Binding in Tkinter
==========================================

Step 1
------
Subclass Tkinter's ``Button`` class and give it a decorator method.

.. sourcecode:: python 

    from Tkinter import *

    class MyButton(Button):
        """Add a method to this class"""
            
    if __name__ == '__main__':
        frame = Frame()                    
        frame.master.title("Event binding with decorators")
        frame.pack()

        btn1 = MyButton(frame, text="One")
        btn1.pack()

        btn2 = MyButton(frame, text="Two")
        btn2.pack()

        @btn1.command
        @btn2.command
        def onclick():
            print 'You clicked on a button'

        frame.mainloop()                  

Expected output:

.. image:: tkinter-screenshot.png        

Hints:

.. class:: hintlist

#. Step 0 of this recipe is a big hint by itself.
#. The name of the method is ``command``, and it needs to accept one parameter.
#. You need to write at least two lines of code inside ``command``.
#. Don't forget the return value.  
    
Solution: `tkinter1.py <solutions/tkinter1.py>`_

`Go to next step <step2.html>`_