I use mypy + type annotations diligently and while it’s a big improvement upon plain Python, it misses a lot of stuff and definitely not nearly as good as a pro

I use mypy + type annotations diligently and while it’s a big improvement upon plain Python, it misses a lot of stuff and definitely not nearly as good as a proper static type system. I’d say it gives you maybe another 15% more “scalability runway” before pythons complexity catches up again.