[Numpy-discussion] Managing Python with NumPy and many external libraries on multiple Windows machines

[Charles R Harris]

On Mon, Apr 27, 2009 at 7:28 PM, David Cournapeau <cournape at gmail.com>wrote:

> On Tue, Apr 28, 2009 at 9:56 AM, Charles R Harris
> <charlesr.harris at gmail.com> wrote:
>
> > Hmm... OK, I think that is because of the endianess function added to the
> > API. It is called during module load and since it isn't there for 1.2,
> > crash. There is also a check for the API version that should have raised
> an
> > error, but evidently not.
>
> Yes, this should have been detected.
>
> > I think the endianess check should probably be
> > moved to testing and not be done during the load. Or it can simply be
> > removed from the interface and/or be implemented inline. I don't think
> > having it in the interface is that important.
>
> I am not sure I understand: it is expected that building software A
> against B >= 1.3 cannot run with B < 1.3 (forward compatibility). It
> is the same as a runtime error when running something with libfoo 1.2
> but linked against 1.3, using a function 1.3 specific.
>
> We should fix the undetected incompatibility, but I don't think we
> should care about the incompatibility itself.
>

I think you are right. So the API version check needs to be fixed.

Chuck
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