Andreas Enge writes:

> On Mon, Feb 23, 2015 at 06:17:47PM +0100, Ricardo Wurmus wrote:
>> The python2-scikit-learn package isn't working as it should.  It does
>> not actually install python2.7 libraries but just the 3.3 libs.
>
> I think you did things the wrong way around: You inherit from the python3
> package, then swap its inputs against those from the python2-wrapped one.
> In this way, the "#:python" field of "arguments" remains at python3.

Yeah, I screwed up.  Attached is a better version that actually works.
I explicitly delete python-scipy and python-numpy, both of which have
matplotlib (and thus the problematic python-pycairo) as inputs, from the
propagated inputs and add their python2 versions manually.

~~ Ricardo