Pygame sprite transformation with interpolation

Question

Im currently working on a Python/Pygame module to wrap some basic sprite animation. Animation in the sense that the image itself is static but I apply rotation and scale with start and end values with a sine wave interpolation. That is, sprite transformation like the ones that could be made in Flash. I hope you understand, otherwise feel free to ask and I try to clarify.

I cant find a module that does this already. Does anyone know of one? Would save me some work. :)

Edit: Oh, and if this transformation with interpolation thingie has a proper name I would love to hear it. Would probably make my search results better.

Answer 1

You can transform images by pygame.transform, but interpolation is not included in pygame.

Rabbyt provides animation including interpolation, even though I haven't used it.