[BangPypers] Reorder Dictionary Size in python

[Vishal]

Not sure what the exact intent of resizing the dict is...however, if you
wish to reduce the overall memory consumption of your python process...i
would suggest:

- copy the required contents to a new dict..(use dict comprehension if you
can)
>>> d2 = dict((k,v) for k,v in d1.items() if <insert your conditions here>)

- Assign the old dict name to None
>>> d1 = None

- do a gc.collect()
>>> import gc
>>> gc.collect()

you should see immediate results on process memory consumption.

Enjoy Python
Vishal Sapre

On Wed, Apr 17, 2013 at 9:22 PM, Rahul R <rahul8590 at gmail.com> wrote:

> Ahh , sorry If i wasnt clear the first time. I dint mean reorder the data
> in dictionary. I meant resize the dictionary.
>
> ./Rahul
>
> On Wed, Apr 17, 2013 at 9:05 PM, Anand Chitipothu <anandology at gmail.com
> >wrote:
>
> > dictionaries are unordered. It is not a good idea to expect any order in
> > dictionaries, even if you are seeing some order by chance.
> >
> > If you need order, then use OrderedDict from collections module (new in
> > Python 2.7).
> >
> > Anand
> >
> >
> > On Wed, Apr 17, 2013 at 9:00 PM, Rahul R <rahul8590 at gmail.com> wrote:
> >
> > > Hey  Guys,
> > >
> > > Is it possible to forcibly reorder the python dictionary after "n"
> number
> > > of inserts and deletions. As far as i know, python dictionary performs
> > lazy
> > > deletes. Thus , even if the data is deleted, python has a dummy data
> > their
> > > in order to preserve consistency. The python dictionary
> > > keeps expanding when the size of dict is increasing, but after
> deleting a
> > > few parameters the size does not decrease. Is there a way , where I can
> > > forcibly resize the dictionary ?
> > >
> > > I was thinking of copying content from existing dictionary to new dict
> > and
> > > deleting the previous one.But thats a cumbersome operation.
> > >
> > > Thanks,
> > > ./Rahul
> > > _______________________________________________
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> > >
> >
> >
> >
> > --
> > Anand
> > http://anandology.com/
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> >
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-- 
Thanks and best regards,
Vishal Sapre

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