[Rivet] Minor bug in rivet-bootstrap [Re: Rivet 1.5.0 released]

[Andy Buckley]

On 15/03/11 13:14, Ben Waugh wrote:
> On 15/03/11 12:51, Andy Buckley wrote:
>> On 15/03/11 12:38, Ben Waugh wrote:
>>> There is only one minor bug that I have discovered so far. The generated
>>> rivetenv.sh sets PYTHONPATH to
>>>   $INSTALLDIR/lib/python2.4/site-packages
>>> but the Python libraries are actually in
>>>   $INSTALLDIR/lib64/python2.4/site-packages
>>>
>>> So just running Rivet out of the box gives the infamous "No module named
>>> rivet" error.
>>
>> Damn, so close! Hmm, I *thought* that I was now taking the generated
>> rivetenv scripts from the Rivet build, in which case the installation
>> directory is actually generated (in configure.ac) by Python's own
>> installation system! I'll have to check the bootstrap script again.
>>
>> In the meantime, can you take a look at the generated rivetenv.sh which
>> should be in the Rivet build directory on your system (i.e. not
>> necessarily the one that rivet-bootstrap tells you to use) and see if it
>> also specifies lib rather than lib64? It would certainly be strange if
>> Python reports that it'll be installing into one directory and then
>> actually copies the files into another...
> 
> Unfortunately...
> 
> waugh> grep PYTHONPATH build/rivet/rivetenv.sh
> export
> PYTHONPATH="/tmp/waugh/rivet/local/lib/python2.4/site-packages:$PYTHONPATH"

Hmmm! Can you now try running a python prompt on the machine with which
you did the installation, run this:

import distutils.sysconfig
print distutils.sysconfig.get_python_lib(prefix='/foo')

and post the output? This should be the method used by Python to do the
module installation, and is the method used to generate that PYTHONPATH
entry in the rivetenv.sh script, so it *really* should be returning a
value with "lib64" in it if that's the dir name that Python is choosing
to install the libraries into!

Cheers,
Andy

-- 
Dr Andy Buckley
SUPA Advanced Research Fellow
Particle Physics Experiment Group, University of Edinburgh

The University of Edinburgh is a charitable body, registered in
Scotland, with registration number SC005336.