trove-classifiers

Canonical source for classifiers on PyPI (pypi.org).

trove-classifiers Permissive license Active ★ 189 v2026.6.1.19 released 2026-06-01

Install

trove-classifiers on PyPI

pip

pip install trove-classifiers

uv

uv add trove-classifiers

poetry

poetry add trove-classifiers

Package facts

License	not declared (permissive)
Python support	not specified
Install friction	low — pure-Python wheel
Runtime dependencies	none
Maintenance	actively maintained — 73 days since the last release
Last repo commit	2026-06-01
First released	2020-04-03
Popularity	one of the 100 most-downloaded packages on PyPI (30-day window, as of 2026-08-13)
Known vulnerabilities	none known (OSV.dev, checked 2026-08-13)

Evidence: trove_classifiers-2026.6.1.19-py3-none-any.whl

Keywords: classifiers

Development Status :: 5 - Production/StableIntended Audience :: DevelopersLicense :: OSI Approved :: Apache Software LicenseProgramming Language :: Python :: 3Typing :: Typed

About trove-classifiers

from the package's own PyPI description — quoted content, verbatim

Canonical source for [classifiers][1] on [PyPI][2].

Classifiers [categorize projects][3] per [PEP 301][4]. Use this package to validate classifiers in packages for PyPI upload or download.

Usage

To install [from PyPI][5]:

$ pip install trove-classifiers

This package can be invoked as a module to print a list of classifiers:

$ python -m trove_classifiers | grep -Ei pyramid
Framework :: Pyramid

In addition, this package's API is two importable objects:

Classifiers (`trove_classifiers.classifiers`)

A set containing classifiers (as strings). Useful for determining membership.

Example - determine if a classifier is valid:

&gt;&gt;&gt; from trove_classifiers import classifiers
&gt;&gt;&gt; 'License :: OSI Approved' in classifiers
True
&gt;&gt;&gt; 'Fuzzy :: Wuzzy :: Was :: A :: Bear' in classifiers
False
&gt;&gt;&gt;

Deprecated classifiers (`trove_classifiers.deprecated_classifiers`)

A dict, mapping a deprecated classifier (string) to a list of classifiers which replaces it (strings).

Example - determine if a classifier is deprecated:

```python >>> from trove_classifiers import deprecated_classifiers >>> 'License :: OSI Approved' in...

Read as markdown · JSON record · Source repository · Homepage

AI interpretation — verify before relying

AI-generated interpretation of the package facts above; every digit, version, license, or vulnerability id it cites is grounded in the facts already shown on this page

Provides the canonical set of PyPI classifiers for validating project metadata, plus a mapping of deprecated classifiers to their replacements.

Zero runtime dependencies and a wheel-only distribution make installation frictionless. Active maintenance with a recent release (73 days ago) and steady repository activity.

Licensed under Apache Software License (permissive), allowing use in most commercial and open-source projects without significant restrictions.

Usage

pip install trove-classifiers

from trove_classifiers import classifiers
if 'License :: OSI Approved' in classifiers:
    print('Valid classifier')

Verdict: A lightweight, actively maintained reference package for PyPI classifier validation with no dependencies, permissive licensing, and top-100 popularity. Safe to adopt for metadata validation workflows.

pypi classifiers validationtrove classifier lookupdeprecated classifier mappingproject metadata categorizationpep 301 classifierspypi package categorization