Google Auth Python Library
==========================

|pypi|

This library simplifies using Google's various server-to-server authentication
mechanisms to access Google APIs.

.. |pypi| image:: https://img.shields.io/pypi/v/google-auth.svg
   :target: https://pypi.python.org/pypi/google-auth

Installing
----------

You can install using `pip`_::

    $ pip install google-auth

.. _pip: https://pip.pypa.io/en/stable/

For more information on setting up your Python development environment, please refer to `Python Development Environment Setup Guide`_ for Google Cloud Platform.

.. _`Python Development Environment Setup Guide`: https://cloud.google.com/python/docs/setup

Extras
------

google-auth has few extras that you can install. For example::

    $ pip install google-auth[pyopenssl]

Note that the extras pyopenssl and enterprise_cert should not be used together because they use conflicting versions of `cryptography`_.

.. _`cryptography`: https://cryptography.io/en/latest/

Supported Python Versions
^^^^^^^^^^^^^^^^^^^^^^^^^
Python >= 3.8

**NOTE**:
Python 3.8 and Python 3.9 were marked as `unsupported`_ by the python community in 
October 2024 and October 2025, respectively.
We recommend that all developers upgrade to Python 3.10 and newer as soon as
they can. Support for end-of-life Python runtimes will be removed from this
library in future updates.
Previous releases that support end-of-life Python versions will continue to be available
for download, but future releases will only target supported versions.

.. _unsupported: https://devguide.python.org/versions/#unsupported-versions

Unsupported Python Versions
^^^^^^^^^^^^^^^^^^^^^^^^^^^
- Python == 2.7:  The last version of this library with support for Python 2.7
  was `google.auth == 1.34.0`.

- Python 3.5:   The last version of this library with support for Python 3.5
  was `google.auth == 1.23.0`.

- Python 3.6:   The last version of this library with support for Python 3.6
  was `google.auth == 2.22.0`.

- Python 3.7:   The last version of this library with support for Python 3.7
  was `google.auth == 2.45.0`.


Documentation
-------------

Google Auth Python Library has usage and reference documentation at https://googleapis.dev/python/google-auth/latest/index.html.

Current Maintainers
-------------------
- googleapis-auth@google.com

Authors
-------

- `@theacodes <https://github.com/theacodes>`_ (Thea Flowers)
- `@dhermes <https://github.com/dhermes>`_ (Danny Hermes)
- `@lukesneeringer <https://github.com/lukesneeringer>`_ (Luke Sneeringer)
- `@busunkim96 <https://github.com/busunkim96>`_ (Bu Sun Kim)

Contributing
------------

Contributions to this library are always welcome and highly encouraged.

See `CONTRIBUTING.rst`_ for more information on how to get started.

.. _CONTRIBUTING.rst: https://github.com/googleapis/google-auth-library-python/blob/main/CONTRIBUTING.rst

License
-------

Apache 2.0 - See `the LICENSE`_ for more information.

.. _the LICENSE: https://github.com/googleapis/google-auth-library-python/blob/main/LICENSE
