Order in metaclass

[Michele Simionato]

Nicolas Fleury <nid_oizo at yahoo.com_remove_the_> wrote in message news:<RnWad.27059$3C6.973079 at news20.bellglobal.com>...
> In the following example:
> 
> class MyMetaclass(type): pass
> class MyBaseType(object): __metaclass__ = MyMetaclass
> class MyType(MyBaseType):
>      x = 4
>      y = 5
>      z = 6
> 
> Is there any way to modify MyMetaclass to keep the order of x,y,z somewhere?
> 
> Thx and regards,
> Nicolas

Short answer: No.

x, y, z are in the class dictionary. dictionaries have no order.

You could use something like

class MyType(MyBaseType):
  __mylist__ = [("x", 4), ("y", 5), ("z",6)]

and use the metaclass to set the class attributes x,y and z for you.


             Michele Simionato