dolfin team mailing list archive

[Johan Hake <hake@xxxxxxxxx>]

On Thursday 16 April 2009 15:57:23 Patrick Riesen wrote:
> Johan Hake wrote:
> > On Thursday 16 April 2009 15:03:26 Patrick Riesen wrote:
> >> hi all
> >>
> >> i updated to dolfin0.9 today on my amd64-debian-linux4.0. most seems to
> >> work fine but i get the following error when i call viper with an xml
> >> file, such as
> >
> > What versions of python do you have installed, maybee more crucial what
> > version of python were your PyDOLFIN compiled against?
> >
> > What does,
> >
> >    pkg-config --modversion python-2
> >
> > tell you? This should be the version your PyDOLFIN installation is
> > compiled against. It looks like your installation at least resides in
> > python2.5, these versions needs to be the same.
>
> pkg-config --modversion python-2  gives me 2.4.4,
>
> in dolfin0.8 it worked fine and i thought it was compiled against
> python2.5. on our university system, python2.5 is not the default, so i had
> to manually point everything towards python2.5 but this might be wrong
> therefore.

It's probably wrong when your PyDOLFIN is compiled againes 2.4. Do not know 
why it suddenly breaks.

> what is the place the above command fetches the information on?

It's probably the pkg-config file python-2.pc, which most probably is created 
during the installation process. See in:

   dolfin/scons/simula-scons/simula_scons/pkgconfiggenerators/python.py

Unfortunatly it is not possible (yet) to set the default python installation 
directory through the scons system. Should this be possible? 

For example:

  scons withPythonDir=/where/your/python/installations/is

Johan

> patrick
>
> > Johan
> >
> >> priesen@vierzack01:/<7>cpp>viper data.xml
> >> Traceback (most recent call last):
> >>    File "/home/priesen/dolfin0.9/bin/viper", line 123, in <module>
> >>      _main(args[-1], None)
> >>    File "/home/priesen/dolfin0.9/bin/viper", line 77, in _main
> >>      return _dolfin_mesh_plotter(infile, outfile, data=data,
> >> lutfile=lutfile, datatype=datatype)
> >>    File "/home/priesen/dolfin0.9/bin/viper", line 27, in
> >> _dolfin_mesh_plotter
> >>      from dolfin import Mesh, UnitSquare, File, plot
> >>    File
> >> "/home/priesen/dolfin0.9/lib/python2.5/site-packages/dolfin/__init__.py"
> >>, line 11, in <module>
> >>      import cpp
> >>    File
> >> "/home/priesen/dolfin0.9/lib/python2.5/site-packages/dolfin/cpp.py",
> >> line 6, in <module>
> >>      import _cpp
> >> ImportError:
> >> /home/priesen/dolfin0.9/lib/python2.5/site-packages/dolfin/_cpp.so:
> >> undefined symbol: Py_InitModule4
> >>
> >> does someone have a clue on what went wrong ?
> >>
> >> thanks for your help,
> >> patrick
> >>
> >>
> >>
> >> _______________________________________________
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> >> DOLFIN-dev@xxxxxxxxxx
> >> http://www.fenics.org/mailman/listinfo/dolfin-dev
>
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