Pierre-Yves David <pierre-yves.david@logilab.fr> [Thu, 27 Jun 2013 15:13:47 +0200] rev 9116
[repoapi] make ClientConnection.__enter__ return self
This allow the standard idiom::
with repoapi.connect(repo, login='babar', passwork='elephant') as cnx:
cnx.execute(…)