python-gsasl is a set of Python bindings to the GSASL library. It is based on CTypes and provides a parser that generates Python code with type checking and a more Pythonic feel than simply using the library through ctypes. It has been tested on Linux, but should work on other platforms too.
image-deduplication-tool is a script designed to scan specified paths and calculate the DCT hashes of all the images there. It compares the hashes to find closest-looking image pairs, despite various alternations (such as crop, rotation, gamma/color correction, noise, etc.), optionally presenting them in a feh image viewer for the operator to easily compare and remove one of the versions. It uses libpHash to produce and compare perceptual hashes.