[Rivet] AIDA branch closed (gzip next...)

[James Monk]

In fact there is a native python gzip module, available since Python 1.5 (so even us mac users with our hoary old Python 2.7 can use it ;)  .    There’s plenty of whinging online that its performance isn’t up to standard gunzip or a c++ implementation though…

James



On 23 May 2014, at 14:04, James Monk <jmonk at cern.ch> wrote:

> That would actually be a nice alternative - modify the rivet python script to pipe the input through gunzip if it detects a gzipped file.  Then we don’t need the zlib dependency.  I presume performance would be more-or-less identical - does anyone know for sure?
> 
> James
> 
> On 23 May 2014, at 09:35, Leif Lönnblad <leif.lonnblad at thep.lu.se> wrote:
> 
>> On 2014-05-23 07:24, David Grellscheid wrote:
>>> I agree with that. A good behaviour for Rivet would be to
>>> 
>>> - check if zlib is available
>>> - if yes, always compile it in
>>> - => transparently understand zipped and non-zipped HepMC files
>>> - if zlib not compiled in and we encounter a gzip file (check first 4
>>> bytes are \x1f \x8b), output a useful message.
>> 
>> Is there any unix distribution that doesn't come with the gzip executable by default? In ThePEG I have a fall-back that pipes a file through gzip in case zlib is not available. It doesn't work if the input is already sent through a pipe to rivet, but in that case there's not much point in zipping...
>> 
>> Cheers,
>> Leif
>> 
>> 
>> 
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