[Python-Dev] Most 3.x buildbots are green again, please don't break them and watch them!

Brett Cannon brett at python.org
Thu Apr 14 11:40:55 EDT 2016

On Thu, 14 Apr 2016 at 03:26 Victor Stinner <victor.stinner at gmail.com>

> Le 14 avr. 2016 11:16 AM, "Serhiy Storchaka" <storchaka at gmail.com> a
> écrit :
> > A desirable but nonexistent feature is to write emails to authors of
> commits that broke buildbots. How hard to implement this?
> Yeah I also had this idea since many years but buildbots were quite
> unstable. Maybe we should be more strict to consider a buildbot as stable?

Depending on how fancy we get with our infrastructure after we move to
GitHub, we could theoretically end up with a PR-merging bot that can detect
which commit broke things and report on the PR that did it (we well as
report anywhere else we wanted to).

> I propose to experiment sending notifications of failure to the authors of
> changes *and* to a new mailing list. I would subscribe to such list. An
> even safer starting point would be to only start with the mailing list.
> FYI I'm connected to the #python-dev IRC channel which already contain
> these notifications. But I agree that mails are better.

Yeah, I'm one of those that doesn't sit on #python-dev due to the lack of a
persistently connected machine, so an email would work better (unless we
want to be trendy and write a bot for Slack/Skype/FB Messenger :).

> > What are you think about backporting recent regrtest to 2.7? Most needed
> features to me are the -m and -G options.
> Regrtest changed a lot in python 3.6 (new test.libregrtest library).
> I suggest to start from python 3.5.
> For -m: if it doesn't need to modify the unittest module, I agree.
> I don't know -G option.
> > Would be nice to add a feature for running every test in separate
> subprocess. This will isolate the effect of failed tests.
> See my email :-) I proposed to modify -j1 to run tests in subrpocesses. I
> even mentionned my issue.
> I suggest to use -jN on all buildbot, at least -j1.
> Maybe -j2 is even better since many tests are waiting on IO or simple
> sleep.

Both ideas seems reasonable.
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