macOS
Homebrewverified · 100%
brew install cythonlocal Homebrew formula metadata
brew
Install cython with Homebrew, apk, apt, dnf, pacman
Compiler for writing C extensions for the Python language. Version 3.2.8 via Homebrew; verified 2026-07-01.
install
Additional install commands
Linux
Alpine Linux apkverified · 92%
sudo apk add cythonAlpine Linux edge package indexes · cython · source: dl-cdn.alpinelinux.org
Debian aptverified · 92%
sudo apt install cython-docDebian stable package indexes · cython-doc · source: deb.debian.org
Fedora dnfverified · 92%
sudo dnf install python3-cythonFedora Rawhide package metadata · python3-cython · source: dl.fedoraproject.org
Arch Linux pacmanverified · 92%
sudo pacman -S cythonArch Linux sync databases · cython · source: geo.mirror.pkgbuild.com
overview
Package summary
Compiler for writing C extensions for the Python language
Project links
Commands and aliases
- cygdb
- cython
- cythonize
history
Project history and usage
Cython is an optimizing static compiler for Python and the extended Cython language. It translates Python-like code to C or C++ so developers can write CPython extension modules, wrap native libraries, and tune performance without abandoning Python syntax.
Project history
The official Cython README says Cython was originally based on Greg Ewing's Pyrex and started as an early-2000s project. Cython kept the Python-extension-module idea but grew into a long-lived compiler with its own language features, type declarations, C/C++ interop, and CPython-version adaptation.
The official site describes Cython as a superset of Python that supports C/C++ functions and types, allowing generated C code to be compiled with major C/C++ compilers. The project repository was created on GitHub in 2010 and remains the active source for compiler, docs, and tooling.
Adoption history
Cython became common infrastructure in the scientific Python and performance-sensitive Python ecosystem because it lets projects ship fast extension modules while retaining a Python-like development model. The official README states that Cython has more than 70 million PyPI downloads per month, which reflects broad use as a build-time dependency as well as a developer tool.
How it is used
Users install Cython, write .pyx modules or use pure-Python annotation mode, and run cython or cythonize to generate C/C++ code for extension builds. Common uses include wrapping external C libraries, optimizing numerical loops, interacting with NumPy arrays, embedding CPython, and maintaining generated C sources for reproducible builds.
Why package nerds care
Cython matters to package nerds because it sits at the boundary between source packages and compiled artifacts. A missing or mismatched Cython can decide whether a Python package builds from sdist, ships generated C, or requires wheels; it is one of the quiet tools behind many fast Python libraries.
Timeline
- Early 2000s: Cython starts as a project based on Pyrex.
- 2010: cython/cython repository created on GitHub.
- 2011: Official site links the IEEE article 'Cython: The best of both worlds'.
- 2025: Official site lists Cython 3.1.4 as a stable release.
- 2026: GitHub releases show ongoing 3.2.x and 3.3.0 alpha development.
Related projects
- Pyrex is the predecessor named by the official README.
- CPython is the primary runtime and C API target.
- NumPy, PyPy, Pythran, mypyc, Nuitka, and Numba are related ecosystems or comparison points listed in official Cython materials.
Sources
security posture
Risk level: green
narrow executable package without higher-risk signals.
Risk classifier
green risk · low confidence · appliance
Why
- narrow executable package without higher-risk signals
Signals
- metadata:no-higher-risk-signals
Install behavior
- No Homebrew post-install hook is recorded in formula metadata.
- Homebrew bottle metadata is available for 6 platform targets.
- Installs with 1 runtime dependencies.
- Build metadata lists 1 build dependencies.
Recommended review
Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.
executables
Installed executables
| Command | Kind | Exposure | Note |
|---|---|---|---|
cygdb | cli | global executable | |
cython | cli | global executable | |
cythonize | cli | global executable |
freshness
Version and freshness
These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.
page generated2026-07-08
manager version3.2.8
manager updated2026-07-01
local dataok
upstreamnot checked
latest detectednot detected
- infoRelease/tag comparison is only available for GitHub repositories.https://cython.org/none confidence
install metadata
Package metadata
| Package key | brew:cython |
|---|---|
| Version | 3.2.8 |
| Package manager | Homebrew |
| Package manager page | https://formulae.brew.sh/formula/cython |
| Homepage | https://cython.org/ |
| Repository | https://github.com/cython/cython |
| Upstream docs | https://cython.org/ |
| License | Apache-2.0 |
| Source archive | https://files.pythonhosted.org/packages/b6/6b/80101e02ebacaf9232ecf32bf6a788d36b27d820ee02434746252569ef98/cython-3.2.8.tar.gz |
| Last updated | 2026-07-01T09:53:57Z |
| Pulse | updated |
| Dependencies | python@3.14 |
| Build dependencies | python-setuptools |
| Bottle | available (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux) |
| Homebrew post-install | not defined |
| Service | none declared |
registry facts
Source database details
| Source Database | Homebrew formula API |
|---|---|
| Tap | homebrew/core |
| Full Name | cython |
| Version Scheme | 0 |
| Revision | 0 |
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | no |
| Disabled | no |
| Keg Only | yes |
| URL Keys |
|
source database matches
Other package-manager records
Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.
Debian apt95%
cython-doc 3.0.11+dfsg-2
C-Extensions for Python 3 (Documentation)
sudo apt install cython-doc- Section: doc
- Architecture: all
- Source Package: cython
- 3 dependencies
- 1 optional deps
- normalized package name match
- Matched by: Cython
Debian apt95%
cython3 3.0.11+dfsg-2+b1
C-Extensions for Python 3
sudo apt install cython3- Section: python
- Architecture: amd64
- Source Package: cython
- 2 dependencies
- 3 optional deps
- normalized package name match
- Matched by: Cython
Ubuntu apt95%
cython-doc 3.0.8-1ubuntu3
C-Extensions for Python - documentation
sudo apt install cython-doc- Section: universe/doc
- Architecture: all
- Source Package: cython
- 2 dependencies
- 1 optional deps
- normalized package name match
- Matched by: Cython
Ubuntu apt95%
cython3 3.0.8-1ubuntu3
C-Extensions for Python 3
sudo apt install cython3- Section: universe/python
- Architecture: amd64
- Source Package: cython
- 2 dependencies
- 3 optional deps
- normalized package name match
- Matched by: Cython
apk95%
cython 3.2.4-r2
Cython is an optimising static compiler for both the Python & the extended Cython programming languages.
sudo apk add cython- License: Apache-2.0
- Architecture: x86_64
- Source Package: cython
- 1 dependencies
- 1 provides
- normalized package name match
- Matched by: Cython
apk95%
cython-doc 3.2.4-r2
Cython is an optimising static compiler for both the Python & the extended Cython programming languages. (documentation)
sudo apk add cython-doc- License: Apache-2.0
- Architecture: x86_64
- Source Package: cython
- normalized package name match
- Matched by: Cython
apk95%
cython-pyc 3.2.4-r2
Precompiled Python bytecode for cython
sudo apk add cython-pyc- License: Apache-2.0
- Architecture: x86_64
- Source Package: cython
- 1 dependencies
- normalized package name match
- Matched by: Cython
dnf95%
python3-cython 3.2.4-4.fc45
Language for writing Python extension modules
sudo dnf install python3-cython- License: Apache-2.0
- Category: Unspecified
- Architecture: x86_64
- Source Package: Cython
- 4 dependencies
- 11 provides
- normalized package name match
- Matched by: Cython
pacman95%
cython 3.2.5-1
C-Extensions for Python
sudo pacman -S cython- License: Apache-2.0
- Architecture: x86_64
- 5 dependencies
- normalized package name match
- Matched by: Cython
source trail
Generated from repository data
This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.
Combined YAML source
View the package source record on GitHub.
Used sources
- Geiger risk classifier
- Nucleus package database
- av.db category and tag curation
- cross-ecosystem install command graph
- curated package history
- external package-manager database matches
- package relationship graph
- package version freshness
- package-page enrichment