OpenGL and Python - Motion blur

What is glAccum? The OpenGL function - glAccum operate on the accumulation buffer.
This function provides support for many special effects.
Today I simulated the effect of motion blur with this function.
See the picture below:

OpenGL and Python - Fog

Today I spent my time with something new - the OpenGL fog effect.
I made one simple fog effect using the last code source.
The result is this image:

OpenGL and Python - Glut

The pyopengl python module showing now the true power of OpenGL.
The python code is simple and this allows us to see the OpenGL teapot object.
The image below, it's a screenshot with this source code.

That is one of my projects about pyopengl.
The python code I used it is simple and it has about 150 rows with some features.