Some features may not work without JavaScript. Please try enabling it if you encounter problems.

pyOpenSSL – A Python wrapper around the OpenSSL library

Stable Docs

Build status

Test coverage

High-level wrapper around a subset of the OpenSSL library. Includes

SSL.Connection objects, wrapping the methods of Python’s portable sockets
Callbacks written in Python
Extensive error-handling mechanism, mirroring OpenSSL’s error codes

… and much more.

You can find more information in the documentation. Development takes place on GitHub.

Discussion

If you run into bugs, you can file them in our issue tracker.

We maintain a cryptography-dev mailing list for both user and development discussions.

You can also join #cryptography-dev on Freenode to ask questions or get involved.

Release Information

17.4.0 (2017-11-21)

Backward-incompatible changes:

none

Deprecations:

none

Changes:

Re-added a subset of the OpenSSL.rand module. This subset allows conscientious users to reseed the OpenSSL CSPRNG after fork. #708
Corrected a use-after-free when reusing an issuer or subject from an X509 object after the underlying object has been mutated. #709

17.3.0 (2017-09-14)

Backward-incompatible changes:

Dropped support for Python 3.3. #677
Removed the deprecated OpenSSL.rand module. This is being done ahead of our normal deprecation schedule due to its lack of use and the fact that it was becoming a maintenance burden. os.urandom() should be used instead. #675

Deprecations:

Deprecated OpenSSL.tsafe. #673

Changes:

Fixed a memory leak in OpenSSL.crypto.CRL. #690
Fixed a memory leak when verifying certificates with OpenSSL.crypto.X509StoreContext. #691

Full changelog.

Metadata

Release files for pyOpenSSL 17.4.0

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for pyOpenSSL 17.4.0
File	Size	Uploaded
pyOpenSSL-17.4.0.tar.gz	169.4 kB	Nov 22, 2017	Details

Built distribution (wheel)

Table of built distributions (wheels) for pyOpenSSL 17.4.0
File	Interpreter	ABI	Platform	Reset
pyOpenSSL-17.4.0-py2.py3-none-any.whl 52.4 kB Nov 22, 2017	Python 3, Python 2	none	any	Details

Total release size: 221.7 kB

Release files / pyOpenSSL-17.4.0.tar.gz

Download URL	pyOpenSSL-17.4.0.tar.gz
Size	169.4 kB
Tags	Source
SHA-256 checksum How to use checksums	`2d96b6a3d768bf466c56240d6dd6f035cc8e9c356d20da0583886e77ce9cf6ab`
BLAKE2b-256 checksum How to use checksums	`41638759b18f0a240e91a24029e7da7c4a95ab75bca9028b02635ae0a9723c23`
Upload date	Nov 22, 2017
Uploaded using Trusted Publishing? What is trusted publishing?	No

Release files / pyOpenSSL-17.4.0-py2.py3-none-any.whl

Download URL	pyOpenSSL-17.4.0-py2.py3-none-any.whl
Size	52.4 kB
Tags	Python 2 Python 3
SHA-256 checksum How to use checksums	`b8a8797c50598da10526511a4a9b992b155932f86dde509906c8bee3a705b480`
BLAKE2b-256 checksum How to use checksums	`b7450b83f445994da6ff803d7c3a5fa016afda3c965d0c48dafa8e0264a554e7`
Upload date	Nov 22, 2017
Uploaded using Trusted Publishing? What is trusted publishing?	No

Release history Release notifications | RSS feed

Aug 1, 2026 2 release files

Jun 12, 2026 2 release files

May 4, 2026 2 release files

Apr 24, 2026 2 release files

Mar 15, 2026 2 release files

Sep 17, 2025 2 release files

Sep 14, 2025 2 release files

May 17, 2025 2 release files

Jan 12, 2025 2 release files

Nov 27, 2024 2 release files

Jul 20, 2024 2 release files

Mar 9, 2024 2 release files

Jan 23, 2024 2 release files

Oct 26, 2023 2 release files

May 31, 2023 2 release files

Mar 28, 2023 2 release files

Mar 24, 2023 2 release files

Jan 2, 2023 2 release files

Sep 25, 2022 2 release files

Jan 29, 2022 2 release files

Sep 28, 2021 2 release files

Dec 15, 2020 2 release files

Nov 27, 2020 2 release files

Nov 18, 2019 2 release files

Jan 21, 2019 2 release files

May 16, 2018 2 release files

Dec 1, 2017 2 release files

This release

17.4.0 This release

Nov 22, 2017 2 release files

Sep 14, 2017 2 release files

Jul 20, 2017 2 release files

Jun 30, 2017 2 release files

Apr 20, 2017 2 release files

Oct 15, 2016 2 release files

Aug 26, 2016 2 release files

Mar 19, 2016 2 release files

Apr 14, 2015 2 release files

Apr 14, 2015 2 release files

Feb 23, 2014 1 release file

Sep 4, 2013 7 release files

Sep 4, 2011 15 release files

Apr 11, 2011 11 release files

Nov 1, 2010

Nov 13, 2009 9 release files

Apr 25, 2009 2 release files

Dec 29, 2008 1 release file

Apr 11, 2008 1 release file

Jun 4, 2008 1 release file

Anthropic, PBC Visionary sponsor

Bloomberg Visionary sponsor

Hudson River Trading Visionary sponsor

Meta Visionary sponsor

NVIDIA Visionary sponsor

Microsoft Sustainability sponsor

Depot Continuous Integration

AWS Cloud computing and Security Sponsor

Datadog Monitoring

Google Download Analytics

Sentry Error logging

StatusPage Status page