What are your favorite open source Python packages written in Rust?

I mostly live in the Rust world, not the Python world, but I worked on two Python packages wrapping over my own Rust libraries and it's been pretty great.

https://github.com/InstantDomain/instant-distance https://github.com/InstantDomain/instant-segment

tokenizers is a great example. Some other, perhaps simpler ones, are orjson and tantivy.

tokenizers