python/importlib_metadata

Library to access metadata for Python packages

142

stars

1,816

commits

Python

primary language

Aug 28, 2026

updated

importlib-metadata.readthedocs.ioBrowse cluster: Python standard library utilities

README

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   :target: https://github.com/python/importlib_metadata/actions?query=workflow%3A%22tests%22
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    :target: https://github.com/astral-sh/ruff
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Library to access the metadata for a Python package.

This package supplies third-party access to the functionality of
`importlib.metadata <https://docs.python.org/3/library/importlib.metadata.html>`_
including improvements added to subsequent Python versions.


Compatibility
=============

New features are introduced in this third-party library and later merged
into CPython. The following table indicates which versions of this library
were contributed to different versions in the standard library:

.. list-table::
   :header-rows: 1

   * - importlib_metadata
     - stdlib
   * - 7.0
     - 3.13
   * - 6.5
     - 3.12
   * - 4.13
     - 3.11
   * - 4.6
     - 3.10
   * - 1.4
     - 3.8


Usage
=====

See the `online documentation <https://importlib-metadata.readthedocs.io/>`_
for usage details.

`Finder authors
<https://docs.python.org/3/reference/import.html#finders-and-loaders>`_ can
also add support for custom package installers.  See the above documentation
for details.


Caveats
=======

This project primarily supports third-party packages installed by PyPA
tools (or other conforming packages). It does not support:

- Packages in the stdlib.
- Packages installed without metadata.

Project details
===============

 * Project home: https://github.com/python/importlib_metadata
 * Report bugs at: https://github.com/python/importlib_metadata/issues
 * Code hosting: https://github.com/python/importlib_metadata
 * Documentation: https://importlib-metadata.readthedocs.io/

For Enterprise
==============

Available as part of the Tidelift Subscription.

This project and the maintainers of thousands of other packages are working with Tidelift to deliver one enterprise subscription that covers all of the open source you use.

`Learn more <https://tidelift.com/subscription/pkg/pypi-importlib-metadata?utm_source=pypi-importlib-metadata&utm_medium=referral&utm_campaign=github>`_.

Not written in Markdown, so it's shown here as plain text — view it formatted on GitHub.

Contributors

(top 30 of 67)

jaraco

1,521 commits

warsaw

80 commits

abravalheri

20 commits

jherland

18 commits

python/importlib_metadata

Library to access metadata for Python packages

142

stars

1,816

commits

Python

primary language

Aug 28, 2026

updated

importlib-metadata.readthedocs.ioBrowse cluster: Python standard library utilities

README

.. image:: https://img.shields.io/pypi/v/importlib_metadata.svg
   :target: https://pypi.org/project/importlib_metadata

.. image:: https://img.shields.io/pypi/pyversions/importlib_metadata.svg

.. image:: https://github.com/python/importlib_metadata/actions/workflows/main.yml/badge.svg
   :target: https://github.com/python/importlib_metadata/actions?query=workflow%3A%22tests%22
   :alt: tests

.. image:: https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json
    :target: https://github.com/astral-sh/ruff
    :alt: Ruff

.. image:: https://readthedocs.org/projects/importlib-metadata/badge/?version=latest
   :target: https://importlib-metadata.readthedocs.io/en/latest/?badge=latest

.. image:: https://img.shields.io/badge/skeleton-2026-informational
   :target: https://blog.jaraco.com/skeleton

.. image:: https://tidelift.com/badges/package/pypi/importlib-metadata
   :target: https://tidelift.com/subscription/pkg/pypi-importlib-metadata?utm_source=pypi-importlib-metadata&utm_medium=readme

Library to access the metadata for a Python package.

This package supplies third-party access to the functionality of
`importlib.metadata <https://docs.python.org/3/library/importlib.metadata.html>`_
including improvements added to subsequent Python versions.


Compatibility
=============

New features are introduced in this third-party library and later merged
into CPython. The following table indicates which versions of this library
were contributed to different versions in the standard library:

.. list-table::
   :header-rows: 1

   * - importlib_metadata
     - stdlib
   * - 7.0
     - 3.13
   * - 6.5
     - 3.12
   * - 4.13
     - 3.11
   * - 4.6
     - 3.10
   * - 1.4
     - 3.8


Usage
=====

See the `online documentation <https://importlib-metadata.readthedocs.io/>`_
for usage details.

`Finder authors
<https://docs.python.org/3/reference/import.html#finders-and-loaders>`_ can
also add support for custom package installers.  See the above documentation
for details.


Caveats
=======

This project primarily supports third-party packages installed by PyPA
tools (or other conforming packages). It does not support:

- Packages in the stdlib.
- Packages installed without metadata.

Project details
===============

 * Project home: https://github.com/python/importlib_metadata
 * Report bugs at: https://github.com/python/importlib_metadata/issues
 * Code hosting: https://github.com/python/importlib_metadata
 * Documentation: https://importlib-metadata.readthedocs.io/

For Enterprise
==============

Available as part of the Tidelift Subscription.

This project and the maintainers of thousands of other packages are working with Tidelift to deliver one enterprise subscription that covers all of the open source you use.

`Learn more <https://tidelift.com/subscription/pkg/pypi-importlib-metadata?utm_source=pypi-importlib-metadata&utm_medium=referral&utm_campaign=github>`_.

Not written in Markdown, so it's shown here as plain text — view it formatted on GitHub.

Contributors

(top 30 of 67)

jaraco

1,521 commits

warsaw

80 commits

abravalheri

20 commits

jherland

18 commits

Languages

Python

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