I have two more substantial pieces of code that I will glorify as being actual software rather than mere scripts. These are much more complex (and hopefully robust) than the scripts and snippets found on the other pages in this section
FRELLED is an all-singing, all-dancing set of Python scripts for Blender which transform it into an astronomical data visualisation tool : you can see and analyse your data in 3D and even in VR. This is lots of fun but also genuinely transformative for visual source extraction. Actively maintained; I use it routinely.
GLADoS is an automatic source extraction algorithm designed for dual-polarisation HI data. This is a complete, self-contained set of Python scripts with a nice little GUI for organising the detections. Currently unsupported as I don't have a working version – it's in dire need of an upgrade from Python 2 to 3 !