There could be a few options to why it's not working. i'd firstly try to run the command pip install wheel and see if it works.
I’m assuming you’re using Python 3, but it’s good to confirm. The problem may be caused by a Python version incompatibility. In any case, if it doesn1t work, tell me which python version you have, since the packages migh not work with more recent ones. Mine is 3.13.3.
you could also try pip install --no-binary=:all: skytemple-files==1.8.3 skytemple-rust==1.8.2 skytemple-dtef==1.6.1, but i'm not sure it will work if you don't have rust or cargo installed