Re: [SQLObject] a third way of accessing attributes

[Ian B. <ia...@co...>]

On Thu, 2003-05-15 at 07:38, Bud P.Bruegger wrote:
> * Adding methods and properties (attributes) to a class at runtime 
>   (sans metaclasses).  

SQLObject does this in the class method SQLObject.addColumn.  The
metaclass simply searches _columns and the defined attributes to run
addColumn on class creation.

The metaclass does other things too, though I've tried to decrease its
work as I'm able.  Some things, like keeping some class variables from
being inherited, still need to be done in the metaclass.  The metaclass
is really just the equivalent of __init__ for the class -- it handles
the class instantiation, where the real __init__ (or __new__/_init)
handle instance instantiation.

  Ian