[Edu-sig] Updated graphics library

[John Zelle]

Hello all,

For those of you who use my graphics.py library for teaching, I wanted 
to let you know that I've just released an update to version 3.2. This 
version has two important improvements over the last release (3.0):

1. Significantly improved performance of communication with the Tk thread.

2. A new Pixmap object that can be used for simple image manipulation 
programs. Pixmap is a wrapper around the TK photoimage class and allows 
creation and manipulation of gif, ppm, and bitmap graphics files through 
setPixel and getPixel methods.

As usual, the package and updated documentation are available at:
http://mcsp.wartburg.edu/zelle/python

The threading updates have been fairly well tested at this point, as 
we've used them already in a CS1 class. The Pixmap object is not as 
extensively tested, but it's so simple that I feel it is ready for 
release. Id' be happy to hear any feedback (good or bad).

--John

-- 
John M. Zelle, Ph.D.             Wartburg College
Professor of Computer Science    Waverly, IA
john.zelle at wartburg.edu          (319) 352-8360