"""The sprite interface bing written over sdl in python is not thread safe. If you want multiple threads manipulating sprites in a pygame app you need to lock the SpriteGroup, while draw()' inig it.
I didn't do any extensive tests, but if i try to kill() a sprite (remove it from a group) the code will sometimes crash if another thread is in the process of drawing the group (KeyError: <Sprite sprite(in 0 groups)>) """ I added a note to the docs about the sprite module not being thread safe. Not that it was intended to be thread safe.
