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Re: [igraph] Import error in igraph

From: Tamás Nepusz
Subject: Re: [igraph] Import error in igraph
Date: Mon, 25 Jun 2012 23:16:17 +0200

Dear Shreya, 

This is the same bug as the one menitoned by Sabine earlier today (see 
Basically, the C core of your igraph library was updated on your system after 
the release of 0.6, but the Python interface was not updated with it due to a 
problem with the package build service. I'm trying to fix this but it is more 
complicated than I initially thought because of how the packages are built on 

As a workaround, you may try to remove python-igraph from your system and build 
it yourself using "easy_install python-igraph" (if you have easy_install 
installed on your system). 


On Monday, 25 June 2012 at 23:12, Shreya Kedia wrote:

> Hello,
> I have been using igraph for a few days, and it worked perfectly fine until 
> today. When i tried to execute one of my previously working codes, i got this 
> error:
> Traceback (most recent call last):
> File "conductance.py", line 2, in <module>
> from igraph import *
> File "/usr/lib/python2.7/dist-packages/igraph/__init__.py", line 30, in 
> <module>
> from igraph.core import *
> ImportError: /usr/lib/python2.7/dist-packages/igraph/core.so: undefined 
> symbol: igraph_community_leading_eigenvector_naive
> Can you tell me what's wrong?
> -Shreya Kedia
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