pyroma
Test your project's packaging friendliness
Decision gist · record as of 2026-08-14
Yes. Pyroma is actively maintained, has no known vulnerabilities, installs with low friction, and solves a real problem—catching packaging metadata issues before they reach PyPI or frustrate users. The MIT license is unrestricted. Use it if you want automated feedback on whether your project meets Python packaging conventions.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.9 or later; build backend must be available or installable in an isolated environment for metadata extraction.
- Low friction install with seven runtime dependencies (build, docutils, packaging, pygments, requests, setuptools, trove-classifiers).
- Actively maintained with a recent release in December 2025 and ongoing commits through June 2026.
License · maintenance · safety
MIT (permissive) — MIT license (permissive) places no restrictions on use, modification, or distribution for commercial or private projects.
last release 2025-12-09 (248 days) · last repo commit 2026-06-14 · 234 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 405,532 downloads/mo, #6,905 on PyPI
Alternatives
Verify before relying
pip install pyroma
pyroma .
pyroma pyroma-1.0.tar.gz
pyroma pyroma- Whether the wheel build rating (added in 5.0b1) is useful in practice or requires running python -m build separately for diagnostics.
- Performance impact of running check-manifest as an integrated test when the package is installed alongside pyroma.
What it is and what it does
Pyroma is a command-line tool and Python library that audits Python packaging metadata and project structure against ecosystem best practices. It checks for required fields (name, version, description), validates version strings against PEP 386, verifies that long descriptions are substantive and render correctly via Docutils, ensures classifiers and metadata like author, license, and supported Python versions are present, and for PyPI packages specifically, checks ownership distribution and source distribution availability. The tool produces a numeric rating (out of 10) and a list of specific issues to address.
You run it on a local project directory before release, on a distribution archive before upload, or by package name directly against PyPI. It's designed both as a standalone script and as an importable library for integration into release workflows, including pre-commit hooks. The tool has evolved to use PEP 517 build backends and modern metadata standards, dropping support for setup.py monkey-patching in version 5.0.
Use it for
- Check a local project before release to catch missing metadata, bad version strings, or short descriptions.
- Audit a PyPI package by name to verify ownership distribution and source distribution presence.
- Integrate into pre-commit hooks to enforce packaging standards on every commit.
- Validate that long_description renders correctly as HTML via Docutils before uploading.
- Verify classifier coverage for Python versions and license declarations match project intent.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes.
Pyroma is actively maintained, has no known vulnerabilities, installs with low friction, and solves a real problem—catching packaging metadata issues before they reach PyPI or frustrate users. The MIT license is unrestricted. Use it if you want automated feedback on whether your project meets Python packaging conventions.
Install
pyroma on PyPI
Before you install
Low friction install with seven runtime dependencies (build, docutils, packaging, pygments, requests, setuptools, trove-classifiers). Actively maintained with a recent release in December 2025 and ongoing commits through June 2026.
Requires Python 3.9 or later; build backend must be available or installable in an isolated environment for metadata extraction.
License in practice
MIT license (permissive) places no restrictions on use, modification, or distribution for commercial or private projects.
Quickstart
pip install pyroma
pyroma .
pyroma pyroma-1.0.tar.gz
pyroma pyromaVerify before relying
- Whether the wheel build rating (added in 5.0b1) is useful in practice or requires running python -m build separately for diagnostics.
- Performance impact of running check-manifest as an integrated test when the package is installed alongside pyroma.
Package facts
| License | MIT permissive |
| Python support | Supports the current Python release >=3.9 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 7 packagesbuilddocutilspackagingpygmentsrequestssetuptoolstrove-classifiers |
| Maintenance | Actively maintained 248 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 405,532 / month, #6,905 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 5 - Production/StableIntended Audience :: DevelopersLicense :: OSI Approved :: MIT LicenseOperating System :: OS IndependentProgramming Language :: PythonProgramming Language :: Python :: 3Programming Language :: Python :: 3 :: OnlyProgramming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.14Programming Language :: Python :: 3.9Programming Language :: Python :: Implementation :: CPythonProgramming Language :: Python :: Implementation :: PyPy |
Evidence: pyroma-5.0.1-py3-none-any.whl
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See also check-manifest · sampleproject · jupyter-packaging · trove-classifiers · validate-pyproject · pyproject-metadata · setupmeta · pdm-backend · PyScaffold · pip-licenses