[Rivet] "The rivet Python module could not be loaded" error

[Andy Buckley]

Hi Fabricio,

Please try setting up your environment, running "python" and then
entering "import rivet" at the Python command line. That will reveal
what was actually going wrong -- send us the output and we'll try to help.

By the way, which version of Rivet are you trying to use? There are
pre-installed versions from Genser, available on CERN AFS and accessible
from lxplus, for example:
/afs/cern.ch/sw/lcg/external/MCGenerators_lcgcmt67b/rivet/2.1.2/x86_64-slc6-gcc47-opt/
 You need to set up the base compiler etc. by yourself, though.

Andy


On 20/07/14 20:49, Fabricio Jiménez wrote:
> Hello,
> 
> I’m contacting you directly since the “open tickets” page under rivet’s
> hepforge site gives an error.
> 
> I am trying to install rivet in a CERN machine (lxplus6 with afs) in my
> local directory, following the steps here:
> https://rivet.hepforge.org/trac/wiki/GettingStarted.
> 
> It seems like there is an issue setting the some variables:
> 
> [fajimene at lxplus0126 rivet]$ source
> /afs/cern.ch/user/f/fajimene/Thesis/rivet/local/rivetenv.sh
> <http://cern.ch/user/f/fajimene/Thesis/rivet/local/rivetenv.sh>
> [fajimene at lxplus0126 rivet]$ rivet --help
> *The rivet Python module could not be loaded: is your PYTHONPATH set
> correctly?*
> 
> Here are the variables:
> 
> [fajimene at lxplus0126 rivet]$ echo $PYTHONPATH
> /afs/cern.ch/user/f/fajimene/Thesis/rivet/local/lib/python2.6/site-packages
> <http://cern.ch/user/f/fajimene/Thesis/rivet/local/lib/python2.6/site-packages>
> 
> [fajimene at lxplus0126 rivet]$ echo $LD_LIBRARY_PATH
> /afs/cern.ch/user/f/fajimene/Thesis/rivet/local/lib:/afs/cern.ch/user/f/fajimene/Thesis/rivet/local/lib:/afs/cern.ch/sw/lcg/external/HepMC/2.06.06/x86_64-slc6-gcc46-opt/lib:/afs/cern.ch/sw/lcg/external/fastjet/3.0.3/x86_64-slc6-gcc46-opt/lib:@YAML_CPPLIBPATH@:/usr/lib:/afs/cern.ch/user/f/fajimene/Thesis/rivet/local/lib:/afs/cern.ch/user/f/fajimene/Thesis/rivet/local/lib:/afs/cern.ch/sw/lcg/external/HepMC/2.06.06/x86_64-slc6-gcc46-opt/lib:/afs/cern.ch/sw/lcg/external/fastjet/3.0.3/x86_64-slc6-gcc46-opt/lib:@YAML_CPPLIBPATH@:/usr/lib:/afs/cern.ch/user/f/fajimene/Thesis/rivet/local/lib:@YAML_CPPLIBPATH@:/afs/cern.ch/user/f/fajimene/Thesis/rivet/local/lib:@YAML_CPPLIBPATH@:/afs/cern.ch/user/f/fajimene/Thesis/rivet/local/lib:/afs/cern.ch/user/f/fajimene/Thesis/rivet/local/lib:/afs/cern.ch/sw/lcg/external/HepMC/2.06.06/x86_64-slc6-gcc46-opt/lib:/afs/cern.ch/sw/lcg/external/fastjet/3.0.3/x86_64-slc6-gcc46-opt/lib:@YAML_CPPLIBPATH@:/usr/lib:
> <http://cern.ch/user/f/fajimene/Thesis/rivet/local/lib:/afs/cern.ch/user/f/fajimene/Thesis/rivet/local/lib:/afs/cern.ch/sw/lcg/external/HepMC/2.06.06/x86_64-slc6-gcc46-opt/lib:/afs/cern.ch/sw/lcg/external/fastjet/3.0.3/x86_64-slc6-gcc46-opt/lib:@YAML_CPPLIBPATH@:/usr/lib:/afs/cern.ch/user/f/fajimene/Thesis/rivet/local/lib:/afs/cern.ch/user/f/fajimene/Thesis/rivet/local/lib:/afs/cern.ch/sw/lcg/external/HepMC/2.06.06/x86_64-slc6-gcc46-opt/lib:/afs/cern.ch/sw/lcg/external/fastjet/3.0.3/x86_64-slc6-gcc46-opt/lib:@YAML_CPPLIBPATH@:/usr/lib:/afs/cern.ch/user/f/fajimene/Thesis/rivet/local/lib:@YAML_CPPLIBPATH@:/afs/cern.ch/user/f/fajimene/Thesis/rivet/local/lib:@YAML_CPPLIBPATH@:/afs/cern.ch/user/f/fajimene/Thesis/rivet/local/lib:/afs/cern.ch/user/f/fajimene/Thesis/rivet/local/lib:/afs/cern.ch/sw/lcg/external/HepMC/2.06.06/x86_64-slc6-gcc46-opt/lib:/afs/cern.ch/sw/lcg/external/fastjet/3.0.3/x86_64-slc6-gcc46-opt/lib:@YAML_CPPLIBPATH@:/usr/lib:>
> 
> [fajimene at lxplus0126 rivet]$ echo $PATH
> /afs/cern.ch/user/f/fajimene/Thesis/rivet/local/lib/../bin:/afs/cern.ch/user/f/fajimene/Thesis/rivet/local/bin:/afs/cern.ch/user/f/fajimene/Thesis/rivet/local/bin:/afs/cern.ch/user/f/fajimene/Thesis/rivet/local/bin:/afs/cern.ch/user/f/fajimene/Thesis/rivet/local/lib/../bin:/afs/cern.ch/group/zh/bin:/afs/cern.ch/user/f/fajimene/scripts:/afs/cern.ch/cms/caf/scripts:/cvmfs/cms.cern.ch/common:/cvmfs/cms.cern.ch/bin:/usr/sue/bin:/usr/lib64/qt-3.3/bin:/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/afs/cern.ch/user/f/fajimene/bin
> <http://cern.ch/user/f/fajimene/Thesis/rivet/local/lib/../bin:/afs/cern.ch/user/f/fajimene/Thesis/rivet/local/bin:/afs/cern.ch/user/f/fajimene/Thesis/rivet/local/bin:/afs/cern.ch/user/f/fajimene/Thesis/rivet/local/bin:/afs/cern.ch/user/f/fajimene/Thesis/rivet/local/lib/../bin:/afs/cern.ch/group/zh/bin:/afs/cern.ch/user/f/fajimene/scripts:/afs/cern.ch/cms/caf/scripts:/cvmfs/cms.cern.ch/common:/cvmfs/cms.cern.ch/bin:/usr/sue/bin:/usr/lib64/qt-3.3/bin:/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/afs/cern.ch/user/f/fajimene/bin>
> 
> Thank you very much for your help,
> 
> Fabricio Jiménez
> 
> 
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> 


-- 
Dr Andy Buckley, Royal Society University Research Fellow
Particle Physics Expt Group, University of Glasgow / PH Dept, CERN