On Sunday, July 15, 2012 6:20:34 PM UTC+2, rusi wrote: > On Jul 15, 11:35 am, Dieter Maurer <die...@handshake.de> wrote: > > moo...@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 -- http://mail.python.org/mailman/listinfo/python-list
