eGenix pyOpenSSL Distribution 0.9.0-0.9.8k GA

eGenix pyOpenSSL Distribution 0.9.0-0.9.8k GA

eGenix is pleased to announce our new, easy-to-install eGenix pyOpenSSL Distribution 0.9.0-0.9.8k for Python 2.3 - 2.6


The pyOpenSSL Distribution includes everything you need to get started with SSL in Python. It comes with an easy to use installer that includes the most recent OpenSSL library versions in pre-compiled

pyOpenSSL is an open-source Python add-on that allows writing SSL-aware networking applications as as certificate managment tools. It uses the OpenSSL library as performant and robust SSL engine.

OpenSSL is an open-source implementation of the SSL protocol.


This new release of the pyOpenSSL Distribution updates the included pyOpenSSL version to 0.9, which includes a new fix for a serious problem in pyOpenSSL 0.8 related to threaded applications. It also comes with an important bug-fix update of OpenSSL, now at version 0.9.8k.

The problem causes invalid thread states in the Python interpreter which then result in random core dumps and seg faults when using pyOpenSSL 0.8.0 with multi-threaded applications.

The new fix is slightly different than the one we included in 0.8.1 and based on a code analysis we did together with Jean-Paul Calderone to track down the cause of the problem.

Binaries are available for Linux x86 and x64 as well as Windows x86 and Mac OS X PPC/Intel. They include both pyOpenSSL and the necessary OpenSSL libraries.

For Plone users and friends of buildout scripts, we have added pre-built binaries for Windows. They install just like the Linux versions and allow easy integration of the archives into buildout scripts.

For our Mac OS X users, we have included new pre-built binaries for Mac OS X PPC and Intel platforms.


Please visit the eGenix pyOpenSSL Distribution page for downloads, instructions on installation and documentation of the package.


Before installing this version of pyOpenSSL, please make sure that you uninstall any previously installed pyOpenSSL version. Otherwise, you could end up not using the included OpenSSL libs.

More Information

For more information on the eGenix mx Distributions, licensing and download instructions, please write to

Enjoy !

Marc-Andre Lemburg,

Published: 2009-06-11