For StarCraft I modders, one of the best set of tools has for a long time been PyMS, a graphical tool suite that allows several file types to be modded.
The author, poiuy_qwert, has been hard at work converting the source from Python 2 to Python 3, and writes:
Hey all, I've been putting a lot of work into the python3 version of PyMS recently, but again I only have time to work on the tools not to actually use them, so I need to lean on others to use/test the programs and report any issues. If anyone is able to play with them please let me know!
See here for how to raise any issues.
Also, while the source of PyMS has been available for a long time, it has so far been without any explicit license, but poiuy_qwert just now released it under the MIT license.
Find the Python 3 branch of PyMS on GitHub.
