On Thu, Apr 30, 2015 at 8:35 AM, Ken Giusti <kgiu...@redhat.com> wrote:

> ----- Original Message -----
> > From: "Rafael Schloming" <r...@alum.mit.edu>
> > To: proton@qpid.apache.org
> > Sent: Wednesday, April 29, 2015 4:24:09 PM
> > Subject: Re: Python 3 port is 'done'
> >
> > What happens when I run make test and I have both python2 and python3
> > installed on my system? Do the tests run once under each version or does
> > one of the versions 'win'?
> At this point it only runs on the 'default' version - whatever
> /usr/bin/python resolves to.
> I like the idea of having it run on all installed python versions, but I
> haven't explored how to do that yet.
> I've been using virtualenv [1] to switch between the two versions of
> python I have installed on my development station.  Tox [2] is probably the
> best approach to enable testing against multiple python environments.
> I'll look into tox a bit and see what I can come up with.

My system comes with both python and python3 on my path. Just running
python3 manually on proton/tests/proton-test will run it with the python3
interpreter. I don't know how standard this setup is (I'm running stock
fedora 20), but it would be pretty easy to do a check in cmake and run the
tests using python3 if present.

I'm also a fan of running both python versions if present, but I also don't
want to double the time it takes to run through the tests. Given that we
are mostly looking for syntactic incompatibilities in the wrapper code
here, I wonder if it would be sufficient to run a subset of the tests that
is likely to give us good coverage on the wrapper code but doesn't bother
trying to exercise all the C code twice. Obviously if this proves
insufficient we could expand the subset.


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