Attitude is a Python module for fitting the orientation of planes! Its core mission is to compute planar fits and transform them (along with meaningful error distributions) into a form that can be used for geology. It is designed to support the collection of structural measurements from remote sensing data.
The documentation for the module can be found at https://davenquinn.github.io/Attitude, and a preprint publication describing the underlying statistical method is on EarthArXiV.