Class or Dictionary?

Andrea Crotti andrea.crotti.0 at gmail.com
Fri Feb 11 16:40:10 CET 2011


On Feb 11, 3:56 pm, Martin De Kauwe <mdeka... at gmail.com> wrote:
> Hi,
>
> I have a series of parameter values which i need to pass throughout my
> code (>100), in C I would use a structure for example. However in
> python it is not clear to me if it would be better to use a dictionary
> or build a class object? Personally I think accessing the values is
> neater (visually) with an object rather than a dictionary, e.g.
>
> x = params['price_of_cats'] * params['price_of_elephants']
>
> vs.
>
> x = params.price_of_cats * params.price_of_elephants

Visually neater is not really a good parameter to judge.
And in a class you can also overload __getattr__ to get the same
syntax as a dictionary.
But (>100) parameters seems really a lot, are you sure you can't split
in many classes instead?

Classes have also the advantage that you can do many things behind the
scenes, while with plain dictionaries you can't do much...
Where do you take those parameters from and what are they used for?



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