Rust and python bindings

I - Install pip package

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pip install maturin

II - Create project

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maturin new --bindings pyo3 --mixed name_project

III - Create rust lib

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Create in src matrix.rs with your code like this

use rand::Rng;
pub fn generate_matrix() -> Vec<Vec<i32>> {
    let mut matrix = vec![];
    for _ in 0..10 {
        let mut row = vec![];
        for _ in 0..10 {
            row.push(rand::thread_rng().gen_range(0..100));
        }
        matrix.push(row);
    }
    matrix
}

In src/lib.rs add your code like this :

mod matrix;
#[pyfunction]
fn random_matrix() -> Vec<Vec<i32>> {
    matrix::generate_matrix()
}

And functions in the python module like this :

#[pymodule]
fn my_project(m: &Bound<'_, PyModule>) -> PyResult<()> {
    m.add_function(wrap_pyfunction!(random_matrix, m)?)?;
    Ok(())
}

IV - Compile

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maturin build && pip install .

V - Test

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In python/name_project/test/ for exemple, create one file with this and run it.

import my_project

matrix = my_project.random_matrix()
print(matrix)