Re: [igraph] ImportError: /usr/local/lib/python2.6/..../igraph/core.so: undefined symbol: igraph_layout_star

[Tamas Nepusz]

Hello,

You are using the interface for igraph 0.5.4 while the igraph core packages
are for 0.5.3. igraph_layout_star has been added between 0.5.3 and 0.5.4,
hence the error messages. Try using the 0.5.4 packages from here:

https://launchpad.net/~igraph/+archive/ppa

Note that you also have a pre-built package for python-igraph there.

-- 
T.

On 07/07/2011 12:42 PM, Jean-Paul Bouchet wrote:
> Hello
> I would use python-igraph-0.5.4 on a Debian Squeeze server.
> I have loaded the following packages:
> apt-get install libigraph0
> ==> ... Paramétrage de libigraph0 (0.5.3-1) ...
> apt-get install libigraph0-dev
> ==> ... Paramétrage de libigraph0-dev (0.5.3-1) ...
> 
> ... then the python-igraph module:
> wget
> http://pypi.python.org/packages/source/p/python-igraph/python-igraph-0.5.4.tar.gz
> 
> With the default version of Python (2.6.6), I have built and installed this
> module :
> python setup.py build
> python setup.py install
> With just very few warnings such as :
> gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall
> -Wstrict-prototypes -DDEBIAN -fPIC -I/usr/include -I/usr/local/include
> -I/usr/local/include -I/usr/include -I/usr/include/python2.6 -c
> src/graphobject.c -o build/temp.linux-x86_64-2.6/src/graphobject.o
> src/graphobject.c: In function ‘igraphmodule_Graph_layout_star’:
> src/graphobject.c:4732: warning: implicit declaration of function
> ‘igraph_layout_star’
> 
> So it should be OK. But I meet the following error when I execute the
> program pyrocleaner.py which has calls to igraph:
> python pyrocleaner.py
> Traceback (most recent call last):
>   File "pyrocleaner.py", line 35, in <module>
>     from igraph import *
>   File
> "/usr/local/lib/python2.6/dist-packages/python_igraph-0.5.4-py2.6-linux-x86_64.egg/igraph/__init__.py",
> line 30, in <module>
>     from igraph.core import *
> ImportError:
> /usr/local/lib/python2.6/dist-packages/python_igraph-0.5.4-py2.6-linux-x86_64.egg/igraph/core.so:
> undefined symbol: igraph_layout_star
> 
> What have I missed ?
> May be the packages libigraph0 and libigraph0-dev that I have launched are
> too old ?
> Should I recompile and install igraph-0.5.4 as explained at
> http://igraph.wikidot.com/installing-python-igraph-on-linux ?
> Or may I find somewhere more recent versions of these packages ?
> 
> ||ll /usr/lib/libigraph*
> -rw-r--r-- 1 root root 2982518 24 nov.   2009 /usr/lib/libigraph.a
> -rw-r--r-- 1 root root    1007 24 nov.   2009 /usr/lib/libigraph.la
> lrwxrwxrwx 1 root root      18  7 juil. 10:06 /usr/lib/libigraph.so ->
> libigraph.so.0.0.0
> lrwxrwxrwx 1 root root      18  7 juil. 10:04 /usr/lib/libigraph.so.0 ->
> libigraph.so.0.0.0
> -rw-r--r-- 1 root root 1778816 24 nov.   2009 /usr/lib/libigraph.so.0.0.0
> 
> Thanks a lot for your advices.
> 
> Jean-Paul Bouchet
> Institut National de la Recherche Agronomique - Centre de Provence, Alpes,
> Côte d'Azur
> UR 1052 <http://w3.avignon.inra.fr/gafl/en> - Génétique et Amélioration des
> Fruits et Légumes
> Domaine Saint-Maurice - BP 94 - F-84143 Montfavet cedex - France
> E-mail : <mailto:address@hidden>
> 
> 
> 
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