oh, right. so every time you want to post something you have to run the generator? i think that's why i ended up rolling my own templating thing, asking the sorts of people i set it up for to invoke some other software was a bridge too far. i don't remember how i automated moving the text from their machine to the server but it was "once it's saved it's in there" sort of thing. this was early 2000s, i stopped setting up personal sites for people around 2006.
Yeah can probably get a whole static site from a python script that loads jinja. There are lots of ways.
I just think this stuff is so easy and there is so many good tools that it is worth tailor making a solution you like.