On Mon, Aug 11, 2014 at 8:39 AM, Ralf Gommers <ralf.gomm...@gmail.com> wrote:
> > > > On Sat, Aug 9, 2014 at 5:04 AM, David Cournapeau <courn...@gmail.com> > wrote: > >> >> >> >> On Sat, Aug 9, 2014 at 10:41 AM, Matthew Brett <matthew.br...@gmail.com> >> wrote: >> >>> Hi, >>> >>> I would be very happy of some help trying to work out a numpy package >>> binary incompatibility. >>> >>> I'm trying to work out what's happening for this ticket: >>> >>> https://github.com/scipy/scipy/issues/3863 >>> >>> which I summarized at the end: >>> >>> https://github.com/scipy/scipy/issues/3863#issuecomment-51669861 >>> >>> but basically, we're getting these errors: >>> >>> RuntimeWarning: numpy.dtype size changed, may indicate binary >>> incompatibility >>> >>> I now realize I am lost in the world of numpy / scipy etc binary >>> compatibility, I'd really like some advice. In this case >>> >>> numpy == 1.8.1 >>> scipy == 0.14.0 - compiled against numpy 1.5.1 >>> scikit-learn == 0.15.1 compiled against numpy 1.6.0 >>> >>> Can y'all see any potential problem with those dependencies in binary >>> builds? >>> >>> The relevant scipy Cython c files seem to guard against raising this >>> error by doing not-strict checks of the e.g. numpy dtype, so I am >>> confused how these errors come about. Can anyone give any pointers? >>> >> >> Assuming the message is not bogus, I would try import von_mises with a >> venv containing numpy 1.5.1, then 1.6.0, etc... to detect when the change >> happened. >> > > That should be a recent change in 1.8.1, either because the dtype size did > actually change or because the silencing of this message in NoseTester > (numpy.testing) is not effective anymore. > > Note that the warning is too agressive, because it triggers both on ABI > breaks and on backwards-compatible extensions to dtype. That's why it's > filtered in numpy.testing. This was reported to Cython a while ago, not > sure they've fixed the issue in the meantime or not. > Never mind, saw that you already figured out that it's due to scikit-learn: https://github.com/scipy/scipy/issues/3863 Ralf
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