rust-python-examples

Ways for Rust and Python to play nice.

For the below examples, I'm assuming you have both Rust and Python 3 installed on your system.

cffi

First enter the cffi directory. Install the requirements (just cffi).

Now, enter the adder directory and build our crate to a dynamic library:

cargo build --release

Now, check the path location in add.py is correctly pointing to the location of your built library. If so, you can run python3 add.py. If you have no assertion error, you are successfully calling Rust code from Python.

pyo3_basic

Enter the pyo3_basic directory. Install the requirements (we're using setuptools-rust for packaging).

Next:

python3 setup.py develop

This will call out to rustc to compile the extension. It'll also install the resulting Python module into your virtualenv.

You can now from a Python interpreter:

>>> import adder
>>> adder.add(2, 3)
5

pyo3_inherit

Enter the pyo3_inherit directory. You build as above in the basic example:

python3 setup.py develop

You can access methods on either the parent (feed()) or child (roar()):

>>> doris = zoo.Lion('Doris', 2, 0, 'human')
>>> doris.name
'Doris'
>>> doris.age
2
>>> doris.feed()
>>> doris.roar()
'ROAR!!!!'
>>> doris.favorite_meat
'human'