Rust is a great language for writing Python extensions, using a library like PyO3. Some of the most CPU-intensive parts of my company's feature engineering pipeline are now handled in Rust.

I would enjoy writing Rust for Python even more if I could compile and run Rust straight from the same Jupyter notebooks that I prototype my Python code with.

https://github.com/PyO3/pyo3

conda, although written in Python, is language (and somewhat OS) agnostic. We provide lots of C, C++, R and Rust packages as well as Python ones.