On Wed, Apr 2, 2008 at 5:51 PM, Guido van Rossum <[EMAIL PROTECTED]> wrote:
> I have no idea what you are saying here (and I did s/since/sense/ :-). Another lesson to me, that I should proofread my Python impulses: :P Especially because of that I think we should do that. list, dict, and set aren't metaclasses, so it would make sense to make that name change. > > > On Wed, Apr 2, 2008 at 3:34 PM, Benjamin Peterson > <[EMAIL PROTECTED]> wrote: > > > > > > > > > > On Wed, Apr 2, 2008 at 5:20 PM, Guido van Rossum <[EMAIL PROTECTED]> > wrote: > > > > > > On Wed, Apr 2, 2008 at 3:03 PM, Amaury Forgeot d'Arc < > [EMAIL PROTECTED]> > > wrote: > > > > On Wed, Apr 2, 2008 at 11:57 PM, Paul Prescod <[EMAIL PROTECTED]> > wrote: > > > > > > > > But does anyone else find it odd that the types of some things > are > > > > > classes and the classes of some things are types? > > > > > > > > > > >>> type(socket.socket()) > > > > > <class 'socket.socket'> > > > > > >>> type("abc") > > > > > <type 'str'> > > > > > >>> socket.socket().__class__ > > > > > <class 'socket.socket'> > > > > > >>> "abc".__class__ > > > > > <type 'str'> > > > > > > > > > > In a recent talk I could only explain this as a historical > quirk. As > > I > > > > > understand, it is now possible to make types that behave > basically > > > > > exactly like classes and classes that behave exactly like types. > Is > > > > > there any important difference between them anymore? > > > > > > > > I can find one difference: > > > > - types are written in C > > > > - classes are written in Python > > > > > > > > and there is a difference in behaviour: > > > > most types don't have a writable __dict__, and you cannot add > members. > > > > classes are more flexible. > > > > > > That's more correctly described as the difference between built-in > > > types/classes and user-defined types/classes. > > > > > > I think it's still just a historical quirk; maybe we should bite the > > > bullet and fix this in py3k. (Still, 'type' and 'class' will both be > > > part of the language, one as a built-in function and metaclass, the > > > other as a keyword.) > > Especially because of that I think we should change. list, dict, and set > > aren't metaclasses, so it would make since to fix it. > > > > > > > > > -- > > > > > > --Guido van Rossum (home page: > > > http://www.python.org/~guido/<http://www.python.org/%7Eguido/> > ) > > > > > > > > > > > > > > > _______________________________________________ > > > Python-3000 mailing list > > > Python-3000@python.org > > > http://mail.python.org/mailman/listinfo/python-3000 > > > Unsubscribe: > > > http://mail.python.org/mailman/options/python-3000/musiccomposition%40gmail.com > > > > > > > > > > > -- > > Cheers, > > Benjamin Peterson > > > > -- > --Guido van Rossum (home page: > http://www.python.org/~guido/<http://www.python.org/%7Eguido/> > ) > -- Cheers, Benjamin Peterson
_______________________________________________ Python-3000 mailing list Python-3000@python.org http://mail.python.org/mailman/listinfo/python-3000 Unsubscribe: http://mail.python.org/mailman/options/python-3000/archive%40mail-archive.com