PyPaint is a simple drawing application, you can draw ellipses, rectangles, lines and a free-drawing (pencil) feature. Its something like MSs Paint but it has less features. You can draw different shapes on the canvas, save\load files and set the shape thickness.

PyPaint Features:
1. Different drawing shapes: ellipse, rectangle, line, free-draw (pencil).
2. Shapes can be either filled or just outlined.
3. A variety of colors.
4. Drawings can be saved into .pck files and loaded as well.
5. Undo button.

Requirements:
* Python

The license of this software is Freeware, you can free download and free use this image editing software.