Installing the Packages

The built wheels are hosted in the package registry associated with the riseproject/python/wheel_builder project. To install them, first upgrade pip to the latest version, e.g.,

python -m pip install --upgrade pip

and then pass the --index-url option to the install command to tell pip to pull packages from the registry associated with this project, e.g.,

python -m pip install scipy --index-url https://gitlab.com/api/v4/projects/riseproject%2Fpython%2Fwheel_builder/packages/pypi/simple

Some riscv64 packages are now built and published upstream on PyPI. We will no longer build, upgrade and publish them as part of the wheel_builder project.

To make sure to always install the latest version available, use

python -m pip install scipy --prefer-binary --extra-index-url https://gitlab.com/api/v4/projects/riseproject%2Fpython%2Fwheel_builder/packages/pypi/simple

This will:

• search both PyPI and the internal registry.
• pick the highest available version.
• prefer binary wheels over source distributions.

This ensures we get wheels from PyPI when available, while falling back to our registry for packages without riscv64 wheels, avoiding unnecessary source builds.

In general, --extra-index-url should be used very carefully (see https://peps.python.org/pep-0708/#motivation).

The wheel_builder registry only contains wheels for packages that have pre-existing counterparts in PyPI, so it is safe to use it in that context.