Simulation Results Managment

moogyd at yahoo.co.uk moogyd at yahoo.co.uk
Tue Jul 17 10:20:58 CEST 2012


On Sunday, July 15, 2012 6:20:34 PM UTC+2, rusi wrote:
> On Jul 15, 11:35 am, Dieter Maurer <die... at handshake.de> wrote:
> > moo... at yahoo.co.uk writes:
> > > ...
> > > Does pickle have any advantages over json/yaml?
> >
> > It can store and retrieve almost any Python object with almost no effort.
> >
> > Up to you whether you see it as an advantage to be able to store
> > objects rather than (almost) pure data with a rather limited type set.
> >
> > Of course, "pickle" is a proprietary Python format. Not so easy to
> > decode it with something else than Python. In addition, when
> > you store objects, the retrieving application must know the classes
> > of those objects -- and its knowledge should not be too different
> > from how those classes looked when the objects have been stored.
> >
> > I like very much to work with objects (rather than with pure data).
> > Therefore, I use "pickle" when I know that the storing and retrieving
> > applications all use Python. I use pure (and restricted) data formats
> > when non Python applications come into play.
> 
> Pickle -> JSON -> Yaml
> are roughly in increasing order of human-friendliness and decreasing
> order of machine friendliness (where machine means python 'machine')
> 
> This means that
>  - Pickle is most efficient, Yaml least
>  - Pickle comes with python from as far back as I know
>    Json started coming somewhere round 2.5 (I think)
>    (py)yaml needs to be installed separately
>  - reading pickled data will spoil your eyes whereas yaml is pleasant
> to read (just like python)

Hi Everyone,
Thanks for the feedback. For now, I store the data using Pickle.
Steven



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