Granian is more of a web server for python that just happens to be implemented in Rust. Python developers using Granian wouldn't need to know or write any Rust,

Granian is more of a web server for python that just happens to be implemented in Rust. Python developers using Granian wouldn't need to know or write any Rust, just like they don't need to know or write any C in order to use python modules that just happen to have C components to make them faster. The module containing substantial Rust code is merely an implementation detail.