Are you the only person working on it? How big are we talking here, because I’ve worked on a few Python projects that fall in the region of “a couple to a few thousand lines” both by myself and with a team. Working by myself was significantly easier but Python definitely hits a “tangled mess” point, regardless of how disciplined I was.

In comparison one of my personal projects is in Rust and while that’s currently maybe only a thousand lines it’s already significantly easier to deal with.