[Tutor] Bitmap editor and File-saving

[Johnston Jiaa]

Hello, I already asked this on python-list, but would like to improve  
the odds of having my question answered, so I am asking it here too.   
I apologize if this bothers anyone.

I am using Tkinter to create a program in which the user can draw a  
simple bitmap image.  What library would be best to use in this  
circumstance?  I have no idea how I would go about doing this except  
maybe I would use Tkinter's canvas component?

In order for the program to be useful, it should save the picture  
too.  I'd like for it to save the image with some strings of text.   
How can I implement such a file-saving feature?  Would pickling  
work?  I have no idea how to accomplish this task efficiently.

Thanks in advance,
Johnston