Screenshots from OpenGL

The shortest way I found to bring OpenGL screenshots to the hard drive is using the function "frombuffer" from the "imaging Library" "Image", which understands the same format that OpenGL outputs.

Documentation for Image
Documentation for glReadPixels

screenshot = glReadPixels( 0,0, 800, 600, GL_RGBA, GL_UNSIGNED_BYTE)
im = Image.frombuffer("RGBA", (800,600), screenshot, "raw", "RGBA", 0, 0)
im.save("test.jpg")