Hi, Python.NET 2.1 has now been released and can be installed using pip: pip install --upgrade pythonnet Or alternatively dowloaded manually from PyPI ( https://pypi.python.org/pypi/pythonnet/2.1.0) The headline new feature of this release support for Python 3. It also contains many other smaller enhancements and bug fixes. If you are still using an older version from sourceforge or the 2.1.0.dev1 pre-release I would highly recommend upgrading to this release. Many thanks to all the contributors for their efforts to make this release happen. It was a long time coming and wouldn't have happened without a lot of work from them. Development continues on github here https://github.com/pythonnet/pythonnet and I would encourage anyone who would like to get involved. One important thing this project is currently lacking is documentation, so if anyone would like to help there that would be particularly appreciated. Contributors/github users: please note I have merged the develop branch back into master and pull requests will now be accepted against the master branch. Best regards, Tony Roberts www.pyxll.com