[SciPy-Dev] [PATCH] Scipy and python2.7

Ralf Gommers ralf.gommers@googlemail....
Sat Jul 24 03:27:54 CDT 2010

Hi Fabian,

On Thu, Jul 22, 2010 at 8:13 PM, Fabian Pedregosa <fabian.pedregosa@inria.fr
> wrote:

> Hi all.
> With some minor changes I could install scipy using python2.7. The only
> thing that failed was the c++ swig wrappers in scipy.sparse.sparsetools. I
> believe this is because python is compiled now using gcc and not g++, and
> also default flags have changed.
> The problem seems to be that numpy/ndarraytypes.h import inttypes.h, but
> the macros in this file are not accessibly from C++ unless you define the
> variable __STDC_FORMAT_MACROS. My solution was to define this variable in
> the setup.py script. This makes it build fine and test are OK too (ubuntu
> linux 64 bit). I attach the (git) patch.
That seems to fix the problem, good catch. I'm wondering if this really
belongs in setup.py. numpyconfig.h already defines __STDC_FORMAT_MACROS, so
maybe including that in sparsetools.i before arrayobject.h would be cleaner?

If it goes in setup.py it should also go in the SConscript file.

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