This release is a pre-release and may not be stable for production use.
Protobuf Protoc Bin
This Python package is an installer for protobuf's protoc compiler.
Use this package to install a specific version of protoc in your project, without having to figure out the installation externally.
This package is not maintained by or affiliated with the official protobuf group!
This repository does not host any binaries on itself. Instead, the binaries are downloaded from the official protobuf Github during package built or during source installation.
How to install
The package is hosted on PyPi at https://pypi.org/project/protobuf-protoc-bin.
It can be installed via PIP as normal with:
pip install protobuf-protoc-bin
The wheels hosted on PyPi do contain a copy of the protoc releases.
You can also install this package directly from the Github source.
During an installation from source, protoc will be downloaded fresh from the official Protobuf releases:
pip install "git+https://github.com/RobertoRoos/protobuf-protoc-bin.git@<tag>"
(Replacing <tag> with a version like v27.3.)
How to require
To require protoc only during a build script, include it in your pyproject.toml with:
[build-system]
requires = [..., "protobuf-protoc-bin==27.3"]
# ...
Or make it part of an additional install group in your regular environment (with the Poetry backend):
[tool.poetry.group.dev.dependencies]
protobuf-protoc-bin = "27.3"
How to develop
The following concerns only contributors to this package.
Adding a release
Each protobuf-protoc-bin release must correspond one-to-one to a Protobuf release.
To trigger a new release, simply push a new tag to the tip of the main branch that matches the protobuf release, including the leading 'v'.
An example of a valid tag is v27.3.
This means multiple package releases are made from the same commit.
However, the reference that triggers the CI build will affect the version assigned by setuptools_scm and therefor the protobuf release that's being packaged.
CI
A nightly workflow runs a script that looks for new Protoc releases and copies the tags into here, at the tip of the main branch.
So future releases should show up fully automatically.
Platform Tags
Relevant for a binary wheel release is the platform tag, to indicate to a client which wheel should be downloaded.
Separate from that is downloading the correct archive from the protoc release page.
Below is a table showing known examples and their correct values.
In setup.py there is logic to determine these values dynamically.
| Ubuntu (arm64) | Ubuntu (x64) | Windows (x64) | MacOS (x64) | |
|---|---|---|---|---|
| Github runner | ubuntu-24.04-arm | ubuntu-latest | windows-latest | macos-latest |
sysconfig.get_platform() |
linux-aarch64 | linux-x86_64 | win-amd64 | macosx-10.13-universal2 |
platform.system() |
Linux | Linux | Windows | Darwin |
platform.architecture() |
('64bit', 'ELF') | ('64bit', 'ELF') | ('64bit', 'WindowsPE') | ('64bit', '') |
| Wheel platform tag | manylinux_2_24_aarch64 | manylinux_2_24_x86_64 | win_amd64 | macosx_10_13_universal2 |
| Protoc archive name | protoc-vvv-linux-aarch_64.zip | protoc-vvv-linux-x86_64.zip | protoc-vvv-win64.zip | protoc-vvv-osx-x86_64.zip |
Testing
You can locally override the version that setuptools-scm detects by writing the environment variable SETUPTOOLS_SCM_PRETEND_VERSION.
This way you can easily mimic specific releases.
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
Source Distribution
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If you're not sure about the file name format, learn more about wheel file names.
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