inheriting type or object?

[Fabiano Sidler]

Hi folks!

As stated in subject, how do I decide wether to inherit <type 'type'> or
<type 'object'>? Whenever I want to intantiate my derived type, I taked
<type 'type'> here, but inheriting from <type 'object'> consequently would
be reasonable in cases of pure static objects (i.e. objects/types using
staticmethods exclusively), for whose I would prefer toplevel code outside
a class definition in python, since python does not oblige programmers to
use classes (like JAVA et. al.).

So, finally, my question is: Is there a design pattern, that makes
<type 'object'> a reasonable (direct) base type for new objects/types?
Right now, I can't see any.

Thank you for answering!
Greetings,
F. Sidler

[James Stroud]

Re: inheriting type or object?

Fabiano Sidler wrote:[color=blue]
> Hi folks!
>
> As stated in subject, how do I decide wether to inherit <type 'type'> or
> <type 'object'>? Whenever I want to intantiate my derived type, I taked
> <type 'type'> here, but inheriting from <type 'object'> consequently would
> be reasonable in cases of pure static objects (i.e. objects/types using
> staticmethods exclusively), for whose I would prefer toplevel code outside
> a class definition in python, since python does not oblige programmers to
> use classes (like JAVA et. al.).
>
> So, finally, my question is: Is there a design pattern, that makes
> <type 'object'> a reasonable (direct) base type for new objects/types?
> Right now, I can't see any.
>
> Thank you for answering!
> Greetings,
> F. Sidler[/color]

I don't think these are the recommended usages for type and object.
Usually class factories (metaclasses) inheret from type and classes that
instantiate objects inheret from object. I think this might clear up the
issue:

http://www.python.org/download/releases/2.2/descrintro/

James

--
James Stroud
UCLA-DOE Institute for Genomics and Proteomics
Box 951570
Los Angeles, CA 90095

http://www.jamesstroud.com/