cannot build py27-numpy as i386 on SnowLeopard

[dumont.guillaume@…]

Hi,

I am trying to build numpy with python 2.7 as a 32 bit since I would like to use the wxpython port and the numpy port with the same version of python.

I tried to

port install py27-numpy -atlas +universal

with the default build_arch setting and with build_arch set to i386. The install goes trough without any errors and I can import numpy without any problem if python is running in x86_64 mode but if I start python with the command

arch -i386 python

and try to import numpy I always get

File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/core/__init__.py", line 5, in <module>
    import multiarray
ImportError: dlopen(/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/core/multiarray.so, 2): no suitable image found.  Did find:
	/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/core/multiarray.so: mach-o, but wrong architecture

If I run lipo on this library I get:

Non-fat file: /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/core/multiarray.so is architecture: x86_64

which seems to tell me that this library was built as 64 bit regardless of the build_arch setting.

Is this a known problem?

Thanks

[skymoo (Adam Mercer)]

NumPy has never played nice with the universal variant and I've never had much success in getting it to work. Plus it's never been high on my priority list as I personally never use universal.