I can't seem to find any image rotation code that is fast enough for general image viewing purposes written in python. The only one that I can find is from PyComicsViewer project (Rotate.py), which is quite slow. It seems that most of the programs written in python tend to avoid using internal rotation code, while most of them resort to using external libraries. It there any faster way to rotate an image purely in python? (porting a C code to python is a daunting task for me since I only know Python and bash scripting though I understand a tiny bit of C).