On 22 February 2010 22:10, David Cournapeau <[email protected]> wrote: > On Tue, Feb 23, 2010 at 8:42 AM, T J <[email protected]> wrote: >> Hi, >> >> I have numpy installed system-wide, but I also have my own (svn) >> version in ~/.local. When I compile cython modules which make use of >> the NumPy array access, it needs to reference the NumPy include files. >> These are located here: >> >> ~/.local/lib/python2.6/site-packages/numpy/core/include/numpy/ >> >> The "problem" I am having is that when I compile the cython extension, >> it is using libraries located here: >> >> /usr/include/python2.6/numpy > > In addition to what Robert said, note that the above is a downstream > modification. By putting headers in /usr/include instead of > $site-packages/numpy, the system-wide numpy headers are included > whenever the Python.h is, which is often before the numpy headers (the > ones we want). >
Indeed. For some reason, packagers think that developers are idiot, naive, laizy, whatever and freely make ANY modification they feel it makes sense, without ever dropping you a single mail commenting on the changes... Then you start receiving mails about issues with your code... For example, Cython users could take advantage of __init__.[pyx|pxd] to signal packages.. but be carefull, perhaps you should at least add a single comment line in the file, never let it be pass empty to downstream, as a packager could remove empty files (because rpmlint complains about that) > This problem is aggravated by the fact that there is no easy way to > control header path inclusion in distutils: paths are added through > add_include_dirs (which *append* paths), but the default should > actually be prepending. Maybe we should change this internally in > numpy.distutils, but I am a bit worried about the consequences, > IIRC, the same applies to library paths... So you could have a hard time using a custom, shared-lib enabled Python build with version matching the system Python (and BTW, "/usr/lib" should NEVER be added)... Someone should definitely bug distutils about this... But you know, one has to be brave and patient enough to fight in the bug tracker or python-dev :-) -- Lisandro Dalcin --------------- Centro Internacional de Métodos Computacionales en Ingeniería (CIMEC) Instituto de Desarrollo Tecnológico para la Industria Química (INTEC) Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) PTLC - Güemes 3450, (3000) Santa Fe, Argentina Tel/Fax: +54-(0)342-451.1594 _______________________________________________ Cython-dev mailing list [email protected] http://codespeak.net/mailman/listinfo/cython-dev
