On 03/10/2018 14:33, Dhavan Vaidya wrote: >>From pip freeze, I found that pyopenssl was 17.x > > I removed the pip version, and now pip says the version is 16.2.0 > > After this, I removed gajim (apt remove), and installed again. > > I am still getting the same error. i guess you have also to uninstall the cryptography module. best regards Ulf