[Chicago] Install problems with numpy via pip on Snow Leopard (Mac OS X 10.6.x)

[Kenneth Stox]

do

file /Users/skip/django/mysite/venv/lib/python2.7/site-packages/numpy/core/multiarray.so

At least that will tell you what architecture the shared object was
built for.




On Tue, 2013-02-19 at 22:21 -0600, Skip Montanaro wrote:
> I'm having no luck getting numpy to build and install properly on my
> Mac.  I'm doing this in a Django virtualenv.  I've tried both of these
> commands to install it:
> 
>     pip install numpy
> 
> and
> 
>     ARCHFLAGS="-arch x86_64" pip install numpy
> 
> Both -- after emitting a rather amazing number of warning messages --
> manage to install numpy, but import attempts fail with the following
> error:
> 
>     ImportError:
> dlopen(/Users/skip/django/mysite/venv/lib/python2.7/site-packages/numpy/core/multiarray.so,
> 2): no suitable image found.  Did find:
> 	/Users/skip/django/mysite/venv/lib/python2.7/site-packages/numpy/core/multiarray.so:
> mach-o, but wrong architecture
> 
> Python is 2.7.2+ (yes, I should update):
> 
>     % python
>     Python 2.7.2+ (2.7:527c40add91d, Jun 12 2011, 15:36:59)
>     [GCC 4.0.1 (Apple Inc. build 5493)] on darwin
>     Type "help", "copyright", "credits" or "license" for more information.
> 
> and comes from my venv environment.
> 
> Gcc is in /usr/bin and reports as
> 
>    % gcc -version
>    i686-apple-darwin10-gcc-4.2.1: no input files
> 
> I have this vague recollection that gcc 4.2 was problematic.
> 
> Anybody encounter and solve this problem already?  Google was no help,
> though if you have a LMGTFY link, I'd be happy to be chastised for
> feeble Google-fu.
> 
> Thx,
> 
> Skip Montanaro
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