[Rivet] cannot use rivet-mkhtml and make-plots

[roberto franceschini]

Dear authors, I hope this message finds you well.

I have run DELPHI_2002_069_CONF_603 through Herwig7 and I got a Yoda file.
Using yoda2plain and manually plotting the data all seems to be fine.
However I have trouble with the rest of options offered by RIvet, e.g.
rivet-mkhtml and make-plots.
They give some errors, reported in the attached log file, starting with
"Problem while testing for external packages".
Maybe this is a common issue, do you have any idea how to fix these errors?

My rivet came with the boostrap script of Herwig7, and I guess you might
wonder about my
echo $PYTHONPATH
/afs/
cern.ch/user/r/rfrances/p/hw7/lib64/python2.6/site-packages:/afs/cern.ch/user/r/rfrances/p/hw7/lib/python2.6/site-packages:/afs/cern.ch/user/r/rfrances/root/lib:/afs/cern.ch/user/r/rfrances/LHAPDF-6.1.5/buildt/lib64/python2.6/site-packages:/afs/cern.ch/user/r/rfrances/LHAPDF-6.1.5/buildt/lib64/python2.6/site-packages:/afs/cern.ch/user/r/rfrances/LHAPDF-6.1.5/buildt/lib64/python2.6/site-packages
:

and

h7ee>tree /afs/cern.ch/user/r/rfrances/p/hw7/lib64/python2.6/site-packages/
/afs/cern.ch/user/r/rfrances/p/hw7/lib64/python2.6/site-packages/
├── LHAPDF-6.1.5-py2.6.egg-info
├── lhapdf.so
├── rivet
│   ├── core.so
│   ├── __init__.py
│   ├── __init__.pyc
│   ├── plotinfo.py
│   ├── plotinfo.pyc
│   ├── spiresbib.py
│   ├── spiresbib.pyc
│   ├── util.py
│   └── util.pyc
├── rivet-2.4.0-py2.6.egg-info
├── yoda
│   ├── core.so
│   ├── __init__.py
│   ├── __init__.pyc
│   ├── plotting.py
│   ├── plotting.pyc
│   ├── script_helpers.py
│   ├── script_helpers.pyc
│   ├── search.py
│   ├── search.pyc
│   └── util.so
└── yoda-1.5.5-py2.6.egg-info

Thanks a lot for your help,
Roberto
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