Earlier quoted context omitted.
Linux kernel has support for rust userland drivers, and rust interops with python with pyo3.
Not sure what you mean by "userland" drivers here, but support for kernel modules written in rust is actively being developed. It's already being used for kernel drivers like the Asahi Linux GPU driver for M1 Macs.
https://www.kernel.org/doc/html/v4.18/driver-api/uio-howto.h...