[Rivet] Using zipped I/O

[Andy Buckley]

Hi Louie,

Are you sure that YODA built with gzip support? IIRC it needs to be able to find the libZ library at compile time. Have a look in your YODA config.log
Andy
Dr Andy Buckley, Lecturer / Royal Society University Research Fellow
Particle Physics Experiment Group, University of Glasgow

On Apr 23 2018, at 1:59 pm, Corpe, Louie <l.corpe at ucl.ac.uk> wrote:
>
> Hi Riveters,
>
> I'm trying to use the zipped i/o functionality introduced in Rivet 2.6.0 / Yoda 1.7.0.
> I can't seem to get it working: is there an example of how to do this somewhere?
>
> I've included a minimal example [1]. Please let me know what I'm doing wrong!
> The files I used in [1] can be found on my public on lxplus: /afs/cern.ch/user/l/lcorpe/public/RivetZippedIO/examples/
>
> All the best and thanks in advance !
>
> Louie
>
> [1]
> [lcorpe at lxplus005 scratch]$ gzip -c out1028_DSIDxxx.MEWeight.yoda > examples/out1028_DSIDxxx.MEWeight.yoda.gz
> [lcorpe at lxplus005 scratch]$ python
> Python 2.7.5 (default, Aug 4 2017, 00:39:18)
> [GCC 4.8.5 20150623 (Red Hat 4.8.5-16)] on linux2
> Type "help", "copyright", "credits" or "license" for more information.
> > > > import yoda as y
> > > > a= y.read("examples/out1028_DSIDxxx.MEWeight.yoda.gz")
> > >
> >
>
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> File "yoda/include/IO.pyx", line 107, in yoda.core.read (/afs/cern.ch/user/l/lcorpe/scratch/rivet/YODA-1.7.0/pyext/yoda/core.cpp:85809)
> UnicodeDecodeError: 'ascii' codec can't decode byte 0x8b in position 1: ordinal not in range(128)
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