Re: [igraph] error while importing igraph

[Tamas Nepusz]

Hi Hernan,

> <type 'exceptions.ImportError'>: dlopen(/sw/lib/python2.5/site- 
> packages/igraph/core.so, 2): no suitable image found.  Did find:


How did you install igraph? There is a .mpkg installer for Intel Macs  
using Leopard, which can be downloaded here:

http://cneurocvs.rmki.kfki.hu/igraph/download/python_igraph-0.5-py2.5-macosx10.5.dmg

Did you use this one? What I find particularly strange is the  
following two error messages in your output:

> 	/sw/lib/python2.5/site-packages/igraph/core.so: mach-o, but wrong  
> architecture
This means that the C core of igraph is compiled for the wrong  
architecture (PPC instead of Intel or the opposite). Since you have an  
Intel-based Mac and I also compiled igraph for Intels, this shouldn't  
happen. Please examine the above mentioned file from the command line  
as follows:

file /sw/lib/python2.5/site-packages/igraph/core.so

This should list the architectures for which core.so was compiled. In  
my case, this looks like as follows:

core.so: Mach-O universal binary with 2 architectures
core.so (for architecture i386):        Mach-O bundle i386
core.so (for architecture ppc7400):     Mach-O bundle ppc

>         /usr/local/lib/core.so: stat() failed with errno=62
I think errno=62 means that there are too many symbolic links the OS  
must follow when it tries to resolve the actual location of /usr/local/ 
lib/core.so. Moreover, there shouldn't be any file named like this (at  
least not in igraph). So I think core.so belongs to a different  
library installed on your Mac and Python tries to load it only because  
it failed to load /sw/lib/python2.5/site-packages/igraph/core.so.  
Therefore, we should first figure out why Python fails to load it.

Best,
--
Tamas