Installing the Packages

The built wheels are stored as immutable assets in this project’s GitHub Releases and exposed through a static Python Simple Repository API. 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 RISE package index, e.g.,

python -m pip install scipy --index-url https://pypi.riseproject.dev/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 python-wheels project.

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

python -m pip install scipy --prefer-binary --extra-index-url https://pypi.riseproject.dev/simple/

This will:

• search both PyPI and the RISE package index.
• 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 package index 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 RISE package index only contains wheels for packages that have pre-existing counterparts in PyPI, so it is safe to use it in that context.