Run pytest tests in parallel with pytest-xdist

You can significantly speed up your pytest suite by running tests in parallel.

Install

pip install pytest-xdist

Run tests in parallel

Use -n num_workers where num_workers is the number of parallel workers.

pytest -n 4

Or let pytest-xdist choose an appropriate number of workers automatically.

pytest -n auto

-n auto uses as many workers as there are available CPU cores.