Skip test in Python 3.  It is a known bug.
Skip test in Python 3.  It is a known bug.

See: #161

flurischt/jedi,mfussenegger/jedi,jonashaag/jedi,WoLpH/jedi,tjwei/jedi,WoLpH/jedi,mfussenegger/jedi,dwillmer/jedi,dwillmer/jedi,jonashaag/jedi,tjwei/jedi,flurischt/jedi