macOS
Homebrewverified · 100%
brew install pyupgradelocal Homebrew formula metadata
MacPortsverified · 94%
sudo port install pyupgradeMacPorts ports tree · python/pyupgrade/Portfile · source: api.github.com
brew / rank 3276
Install pyupgrade with Homebrew, apt, MacPorts, Nix, pacman
Upgrade syntax for newer versions of Python. Version 3.21.2 via Homebrew; verified from local package data. Also installable with debian: sudo apt install pyupgrade.
install
Additional install commands
Linux
Debian aptverified · 92%
sudo apt install pyupgradeDebian stable package indexes · pyupgrade · source: deb.debian.org
Nixverified · 92%
nix profile install nixpkgs#pyupgradenixpkgs package indexes · pyupgrade · source: raw.githubusercontent.com
Arch Linux pacmanverified · 92%
sudo pacman -S pyupgradeArch Linux sync databases · pyupgrade · source: geo.mirror.pkgbuild.com
overview
Package summary
Upgrade syntax for newer versions of Python
Project links
Commands and aliases
- pyupgrade
history
Project history and usage
pyupgrade is a Python source modernizer, usable directly or as a pre-commit hook, that rewrites syntax and compatibility patterns when newer Python versions are permitted.
Project history
Anthony Sottile developed pyupgrade as a command-line program and pre-commit hook for automatically modernizing Python syntax. The project accumulated transformations for language changes ranging from set literals and f-strings to removal of Python 2 compatibility constructs and outdated standard-library aliases.
The tool follows an explicit-target model: maintainers select flags such as `--py36-plus` or later equivalents so rewrites are constrained by the minimum Python version their project supports.
Adoption history
pyupgrade became available across several packaging ecosystems, including PyPI, Homebrew, Debian and Ubuntu, MacPorts, Arch Linux, and Nix. Its official pre-commit hook also made it straightforward to apply automatically during commits.
How it is used
Users run `pyupgrade` against Python files or configure its official pre-commit hook. Minimum-version flags enable transformations that would be unsafe for older interpreters.
Typical use accompanies a minimum-supported-Python bump, removes redundant compatibility code, and modernizes constructs such as formatting expressions, imports, type declarations, and standard-library aliases.
Why package nerds care
pyupgrade captures Python-version migration knowledge as repeatable source transformations. Package maintainers value it because raising a project's minimum Python version can be followed by a mechanical cleanup of obsolete compatibility syntax, imports, and idioms.
Timeline
- Early project: pyupgrade was established as both a standalone command and a pre-commit hook.
- Subsequent development: Version-target flags and an extensive catalog of syntax, import, and compatibility rewrites were added.
- Ongoing adoption: The tool is packaged by multiple Unix-like operating-system and language-package ecosystems.
Related projects
- pre-commit provides the hook framework documented by pyupgrade.
- python-modernize and six address older Python compatibility concerns that pyupgrade can remove when a project no longer needs those compatibility layers.
- reorder-python-imports is another source-maintenance tool referenced by the official README.
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 1 platform targets.
- Installs with 1 runtime 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 |
|---|---|---|---|
pyupgrade | 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 generated2026-09-19
manager version3.21.2
manager updated
local dataok
upstreamnot checked
latest detectednot detected
https://github.com/asottile/pyupgrade
- infoNo package-manager update timestamp was available.low confidence
- infoNo cached GitHub release or tag data was available.https://github.com/asottile/pyupgradenone confidence
install metadata
Package metadata
| Package key | brew:pyupgrade |
|---|---|
| Version | 3.21.2 |
| Package manager | Homebrew |
| Package manager page | https://formulae.brew.sh/formula/pyupgrade |
| Homepage | https://github.com/asottile/pyupgrade |
| Repository | https://github.com/asottile/pyupgrade |
| License | MIT |
| Source archive | https://files.pythonhosted.org/packages/7f/a1/dc63caaeed232b1c58eae1b7a75f262d64ab8435882f696ffa9b58c0c415/pyupgrade-3.21.2.tar.gz |
| Dependencies | python@3.14 |
| Bottle | available (on all) |
| Homebrew post-install | not defined |
| Service | none declared |
registry facts
Source database details
| Source Database | Homebrew formula API |
|---|---|
| Tap | homebrew/core |
| Full Name | pyupgrade |
| Version Scheme | 0 |
| Revision | 0 |
| Head Version | HEAD |
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | no |
| Disabled | no |
| Keg Only | no |
| 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%
pyupgrade 3.19.1-1
Tool to automatically upgrade Python 3 syntax for newer versions
https://github.com/asottile/pyupgrade
sudo apt install pyupgrade- Section: devel
- Architecture: all
- 2 dependencies
- normalized package name match
- Matched by: Pyupgrade
Nix95%
pyupgrade
nix profile install nixpkgs#pyupgrade- normalized package name match
- Matched by: Pyupgrade
Ubuntu apt95%
pyupgrade 2.37.1-2
Tool to automatically upgrade Python 3 syntax for newer versions
https://github.com/asottile/pyupgrade
sudo apt install pyupgrade- Section: universe/devel
- Architecture: all
- 2 dependencies
- normalized package name match
- Matched by: Pyupgrade
pacman95%
pyupgrade 3.21.2-1
A tool to automatically upgrade syntax for newer versions of the language
https://github.com/asottile/pyupgrade
sudo pacman -S pyupgrade- License: MIT
- Architecture: any
- 2 dependencies
- normalized package name match
- Matched by: Pyupgrade
MacPorts95%
pyupgrade
sudo port install pyupgrade- normalized package name match
- Matched by: Pyupgrade
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
- cross-ecosystem install command graph
- curated package history
- external package-manager database matches
- package relationship graph
- package version freshness
- package-page enrichment
- pkg.so package database
- pkgdb category and tag curation