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Jupyter extension which executes Rust functions in Python

Project description


Test PyPI version

Jupyter extension for jupyter notebook and rust user.

You can define functions in rust and run them as python functions. This extension is built on PyO3 and maturin.




$ pip install rustdef


Define rust functions,

fn my_func(x: i64, y: &str) -> i64 {
    println!("{}", y);
    x + y.len() as i64

Add dependencies, (e.g. num crate)

%rustdef deps add num@0.4.0

Defined dependencies are valid only in the current notebook.

Show dependencies,

%rustdef deps show
num = "0.4.0"

version = "0.13.2"
features = [ "extension-module",]

pyo3 is included by default.


How it works?

Roughly, definitions in rustdef are available in python after the following steps.

  1. Each rustdef magic cell is populated with module definition of pyo3
  2. A new crate is generated for the rustdef cell
  3. The crate is compiled into a python wheel by maturin
  4. Install the wheel with pip
  5. Functions with #[pyfunction] attributes are exported into interpreter name space in notebook
  6. Ready to call the function in notebook!


maturin is required.

$ pip install maturin
$ maturin build
$ pip install target/wheels/rustdef-{version}-{python}-{platform}.whl


  • execute within rustdef cell
  • class/module supports
  • customizable module name
  • use functions defined in another cell
  • verbose flag
  • serde support
  • windows support

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