Comment 1 for bug 1326811

cliff is throwing the error as its not able to find "six"

> /usr/lib/python2.7/dist-packages/pkg_resources.py(576)resolve()
-> dist = best[req.key] = env.best_match(req, self, installer)
(Pdb) req
Requirement.parse('six>=1.6.0')
(Pdb) installer
(Pdb) env.best_match(req,self,installer)
(Pdb) n
> /usr/lib/python2.7/dist-packages/pkg_resources.py(577)resolve()
-> if dist is None:
(Pdb) n
> /usr/lib/python2.7/dist-packages/pkg_resources.py(584)resolve()
-> raise DistributionNotFound(req)