Thomas Heller wrote:
Christian Tismer <tismer@tismer.com> writes: ...
No, sorry. object is just a special case for deriving a new-style class, see above. They can also be created by deriving from builtin types, or by using __slots__.
That's incorrect, IIUC.
__slots__ only has a special meaning for *new stype classes* only, it doesn't trigger anything in classes classes.
Yes, I forgot about that, you are right.
Furthermore, I'm going to propose an extension to the new class system (at least for the MiniPy prototype) that goes a bit further: - __slots__ should get the ability to denote the type of a slot to be generated, especially ctypes types
I'm not really understanding what you're proposing here.
I am trying to extend the new-style classes that includes ctypes, somehow.
You could look at ctypes as implementing 'typed slots' with C-compatible layout.
How is that so different from my idea? ...
- it should be possible to derive a class from nothing, not even from object or classic, but I'd like to describe a plain C structure by classes.
This is maybe also something that ctypes already does. The B *class* above knows all about this C structure
struct B { char x; int y; long long z; };
ctypes.sizeof(B)
16
However, we have the same intent. ciao - chris -- Christian Tismer :^) <mailto:tismer@tismer.com> Mission Impossible 5oftware : Have a break! Take a ride on Python's Johannes-Niemeyer-Weg 9a : *Starship* http://starship.python.net/ 14109 Berlin : PGP key -> http://wwwkeys.pgp.net/ work +49 30 89 09 53 34 home +49 30 802 86 56 pager +49 173 24 18 776 PGP 0x57F3BF04 9064 F4E1 D754 C2FF 1619 305B C09C 5A3B 57F3 BF04 whom do you want to sponsor today? http://www.stackless.com/