dolfin team mailing list archive

[Anders Logg <logg@xxxxxxxxx>]

Garth N. Wells wrote:
> Lorenzo Isella wrote:
> > Hi Anders,
> > And thanks for your help.
> > I suspect my problem is rather trivial and with some more adequate
> > computer skills I could fix it myself.
> > This is the content of the directory you mentioned:
> >
> > ~/temp$ ls /usr/lib/python2.5/site-packages/dolfin/
> > assemble.py   constants.pyc  dolfin.py   _dolfin.so.0      __init__.pyc
> > assemble.pyc  _dolfin.a      dolfin.pyc  _dolfin.so.0.0.0  plot.py
> > constants.py  _dolfin.la     _dolfin.so  __init__.py       plot.pyc
> >
> > However, see what happens when I fire up python2.5 and try importing 
> > dolfin:
> >
> > ~/temp$ python2.5
> > Python 2.5.1 (r251:54863, Aug 17 2007, 00:51:07)
> > [GCC 4.1.3 20070812 (prerelease) (Debian 4.1.2-15)] on linux2
> > Type "help", "copyright", "credits" or "license" for more information.
> > > > > import dolfin
> > Traceback (most recent call last):
> >   File "<stdin>", line 1, in <module>
> >   File "/usr/lib/python2.5/site-packages/dolfin/__init__.py", line 4,
> > in <module>
> >     from assemble import *
> >   File "/usr/lib/python2.5/site-packages/dolfin/assemble.py", line 16,
> > in <module>
> >     from ffc import *
> > ImportError: No module named ffc
> >
> > So I see and error message because ffc is missing. But that is really
> > odd as my system sees it as installed.
> > In fact, I can easily import ffc, but under python 2.4 (which seems to
> > be the default on my box).
> > See:
> >
> > ~/temp$ python
> > Python 2.4.4 (#2, Aug 16 2007, 02:03:40)
> > [GCC 4.1.3 20070812 (prerelease) (Debian 4.1.2-15)] on linux2
> > Type "help", "copyright", "credits" or "license" for more information.
> > > > > import ffc
> >
> > and no error message is given. It seems to me that dolfin wants to run
> > under python2.5 and ffc asks for 2.4.
> > How can I fix that? Everything is already there!
>
> If you install both packages with the default Python version, things 
> should work out. To force FFC to use Python 2.5, in the FFC directory do
>
>   python2.5 setup.py install
>
> Make sure that you do the same for FIAT.
>
> Garth

I think he installed from the Debian packages so this won't help?

/Anders


> > Many thanks
> >
> > Lorenzo
> >
> >
> >
> >
> > On 17/09/2007, Anders Logg <logg@xxxxxxxxx> wrote:
> > > What happens if you start Python and just type
> > >
> > > import dolfin
> > >
> > > ?
> > >
> > > DOLFIN should be installed under
> > >
> > > /usr/lib/python2.5/site-packages/dolfin/
> > >
> > > (or 2.4?)
> > >
> > > /Anders
> > >
> > >
> > > Lorenzo Isella wrote:
> > > > Dear All,
> > > > Thanks for the answers I was provided with.
> > > > After installing libdolfin-dev, I tried running the example in the
> > > > tutorial (http://www.fenics.org/wiki/Tutorial) only to get the 
> > > > following
> > > > error message:
> > > >
> > > > ~/temp$ python poisson.py
> > > > Traceback (most recent call last):
> > > >   File "poisson.py", line 1, in ?
> > > >     from dolfin import *
> > > > ImportError: No module named dolfin
> > > >
> > > > where poisson.py is the file where I saved the python script of the
> > > > tutorial.
> > > > Anybody having the same problem? Where has the dolfin module ended up?
> > > > Cheers
> > > >
> > > > Lorenzo
> > > > _______________________________________________
> > > > DOLFIN-dev mailing list
> > > > DOLFIN-dev@xxxxxxxxxx
> > > > http://www.fenics.org/mailman/listinfo/dolfin-dev
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