[python-committers] Mercurial upgrade

[Antoine Pitrou]

> My question, actually, is why to hurry using "generaldelta". We could
> wait three more months until it is declared "official". Maybe Antoine
> idea, that would make sense, is python.org being a tester to help to
> actually test "generaldelta" to qualify for production.

The prime motivation is that it decreases the size of a clone from 350
to 190 MB, roughly (and presumably also the download size).
The fact that it can help the hg devs validate generaldelta on a
widely-used setup is an added benefit, but that couldn't have been the
sole motivation.

> I am fine with that, if somebody with access takes care to do a "hg
> verify" frequently :).

As a side note, if there's a problem, the buildbots should tell us very
quickly (since they pull from the repo).

Regards

Antoine.