[QUOTE=Hubris;4515718]Does not work on 10th Gen Kindle 5.17.1.0.3 [QUOTE]
Sorry if this is a bit late. Try putting update-install-python3.11-khf from the zip file i am providing below. I'm not sure how to make them target any device, but these should work on your kindle. I think. May be wrong. Provide your kindle serial code if this does not work, as well extensions/MRInstaller/log/ mrinstaller.log if this does not work. If it does work, there should be a python3 folder in /mnt/us, or the root folder if you use usb.
python3kindle-hfkindle10thgen.zip