---
id: decorator
version: "5.3.1"
license: BSD-2-Clause
license_treatment: permissive
maintenance: active
---

# decorator — Decorators for Humans

License: permissive · Maintenance: active · Popularity: top 1,000 on PyPI

## Install

pip install decorator
uv add decorator
poetry add decorator

## Description

Decorators for Humans
=====================

The goal of the decorator module is to make it easy to define
signature-preserving function decorators and decorator factories.
It also includes an implementation of multiple dispatch and other niceties
(please check the docs). It is released under a two-clauses
BSD license, i.e. basically you can do whatever you want with it but I am not
responsible.

Installation
-------------

If you are lazy, just perform

 ``$ pip install decorator``

which will install just the module on your system.

If you prefer to install the full distribution from source, including
the documentation, clone the `GitHub repo`_ or download the tarball_, unpack it and run

 ``$ pip install .``

in the main directory, possibly as superuser.

.. _tarball: https://pypi.org/project/decorator/#files
.. _GitHub repo: https://github.com/micheles/decorator

Testing
--------

If you have the source code installation you can run the tests with

 `$ python tests/test.py -v`

Notice that you may run into trouble if in your system there
is an older version of the decorator module; in such a case remove the
old version. It is safe even to copy the module `decorator.py`...

## AI interpretation — verify before relying

Provides utilities for writing signature-preserving function decorators and decorator factories, including multiple dispatch support, without boilerplate.

Verdict: A mature, well-maintained library (Production/Stable, active, zero known vulnerabilities) that solves a real pain point in Python decorator writing. Low install friction, permissive license, and broad Python version support make it a safe, practical choice for projects needing cleaner decorator syntax.

[View on SkillFed](https://skillfed.io/packages/decorator) · [View on PyPI](https://pypi.org/project/decorator/)