Unable to install on Alpine Linux

[32h3basfl2]

Question

The pre-built Linux wheel is not supported for Alpine Linux. Neither installing from pip works.

Further Information

The failure is due to unable to search for protobuf. Even though tried install with
apk add protobuf-dev, still no success. It keep saying Fail to download protobuf.
However, the network is working fine. As no URL provided in error message, no idea
which site it failed.

Screenshots

System Information

• OS: Alpine Linux
• OS Version: 3.23.5
• Language Version: Python 3.12
• Package Manager Version: pip 25.1.1

Additional Context

Neither pre-built wheel works

/ # pip install tenseal-0.3.17-cp312-cp312-manylinux_2_27_x86_64.manylinux_2_28_x86_64.whl --break-system-packages
ERROR: tenseal-0.3.17-cp312-cp312-manylinux_2_27_x86_64.manylinux_2_28_x86_64.whl is not a supported wheel on this platform.

[philomath213]

Thanks for reporting this.

Alpine uses musl rather than glibc, and we only publish manylinux (glibc) wheels today, so there’s nothing installable there yet. musl wheels are coming.

In the meantime it builds fine from source. Verified on the docker image python:alpine.

• Alpine 3.24.1
• Python 3.14.7
• CMake 4.2.3
• GCC 15.2.

apk add cmake make g++ git
CMAKE_POLICY_VERSION_MINIMUM=3.5 pip install tenseal

That env var CMAKE_POLICY_VERSION_MINIMUM is needed because Alpine ships CMake 4, which rejects the older minimum declared by one of our vendored dependencies.
The “Failed to download protobuf” message is misleading, nothing is being downloaded at that point, we’ll fix it.