A server-side entry in TopGit's GitHub warehouse: boto/boto3, 9.9k stars, Backend, Python. Boto3, an AWS SDK for Python
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===============================
Boto3 - The AWS SDK for Python
|Version| |Python| |License|
Boto3 is the Amazon Web Services (AWS) Software Development Kit (SDK) for
Python, which allows Python developers to write software that makes use
of services like Amazon S3 and Amazon EC2. You can find the latest, most
up to date, documentation at our doc site_, including a list of
services that are supported.
Boto3 is maintained and published by Amazon Web Services_.
Boto (pronounced boh-toh) was named after the fresh water dolphin native to the Amazon river. The name was chosen by the author of the original Boto library, Mitch Garnaat, as a reference to the company.
Notices
On 2026-04-29, support for Python 3.9 ended for Boto3. This follows the
Python Software Foundation end of support <https://peps.python.org/pep-0596/#lifespan>__
for the runtime which occurred on 2025-10-31.
For more information on deprecations, see this
blog post <https://aws.amazon.com/blogs/developer/python-support-policy-updates-for-aws-sdks-and-tools/>__.
After installing boto3
Next, set up credentials (in e.g. ``~/.aws/credentials``):
.. code-block:: ini
[default]
aws_access_key_id = YOUR_KEY
aws_secret_access_key = YOUR_SECRET
Then, set up a default region (in e.g. ``~/.aws/config``):
.. code-block:: ini
[default]
region = us-east-1
Other credential configuration methods can be found `here <https://docs.aws.amazon.com/boto3/latest/guide/credentials.html>`__
Then, from a Python interpreter:
.. code-block:: python
>>> import boto3
>>> s3 = boto3.resource('s3')
>>> for bucket in s3.buckets.all():
print(bucket.name)
Running Tests
~~~~~~~~~~~~~
You can run tests in all supported Python versions using ``tox``. By default,
it will run all of the unit and functional tests, but you can also specify your own
``pytest`` options. Note that this requires that you have all supported
versions of Python installed, otherwise you must pass ``-e`` or run the
``pytest`` command directly:
.. code-block:: sh
$ tox
$ tox -- unit/test_session.py
$ tox -e py26,py33 -- integration/
You can also run individual tests with your default Python version:
.. code-block:: sh
$ pytest tests/unit
Getting Help
------------
We use GitHub issues for tracking bugs and feature requests and have limited
bandwidth to address them. Please use these community resources for getting
help:
* Ask a question on `Stack Overflow <https://stackoverflow.com/>`__ and tag it with `boto3 <https://stackoverflow.com/questions/tagged/boto3>`__
* Open a support ticket with `AWS Support <https://console.aws.amazon.com/support/home#/>`__
* If it turns out that you may have found a bug, please `open an issue <https://github.com/boto/boto3/issues/new>`__
Contributing
------------
We value feedback and contributions from our community. Whether it's a bug report, new feature, correction, or additional documentation, we welcome your issues and pull requests. Please read through this `CONTRIBUTING <https://github.com/boto/boto3/blob/develop/CONTRIBUTING.rst>`__ document before submitting any issues or pull requests to ensure we have all the necessary information to effectively respond to your contribution.
Maintenance and Support for SDK Major Versions
----------------------------------------------
Boto3 was made generally available on 06/22/2015 and is currently in the full support phase of the availability life cycle.
For information about maintenance and support for SDK major versions and their underlying dependencies, see the following in the AWS SDKs and Tools Shared Configuration and Credentials Reference Guide:
* `AWS SDKs and Tools Maintenance Policy <https://docs.aws.amazon.com/sdkref/latest/guide/maint-policy.html>`__
* `AWS SDKs and Tools Version Support Matrix <https://docs.aws.amazon.com/sdkref/latest/guide/version-support-matrix.html>`__
More Resources
--------------
* `NOTICE <https://github.com/boto/boto3/blob/develop/NOTICE>`__
* `Changelog <https://github.com/boto/boto3/blob/develop/CHANGELOG.rst>`__
* `License <https://github.com/boto/boto3/blob/develop/LICENSE>`__
Yes — boto/boto3 ships under the Apache-2.0 license, which makes its source code freely readable (and, depending on license terms, forkable and reusable). Source: github.com/boto/boto3.
What else is in the Backend space?
boto/boto3 is tracked by TopGit under the Backend category, alongside 5 GitHub-tagged topics. Trending and Topics pages list peer repositories of comparable stars and language.
What is boto/boto3?
boto/boto3 (boto/boto3) is a Python project on GitHub. From the project's own README: Boto3, an AWS SDK for Python
What license does boto/boto3 use?
boto/boto3 is released under the Apache-2.0 license. Always verify the LICENSE file directly on GitHub for the authoritative terms — license strings can be edited out of sync with a project's actual stance.
Where can I see boto/boto3 in action?
The project maintains a homepage at https://aws.amazon.com/sdk-for-python/. The README tab on this page also usually contains screenshots and a quickstart.
Where do I read more about boto/boto3?
This TopGit page is a snapshot — the READ ME tab shows the project's own README content (links stripped, images preserved). The GitHub repository at github.com/boto/boto3 is the definitive source.
Why is boto/boto3 categorized under Backend?
TopGit places boto/boto3 in the Backend category based on its GitHub topics and description (tagged: "aws", "aws-sdk", "cloud"). Categories are assigned from real repository metadata, not editorial guesswork.
Read full README in the tab above.
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