On Monday 11 June 2007 17:06, remi jolin wrote:
> Hello,
>
> I was trying to define a CompoundWidget with TGwidgets and could not get
> it working because I was defining all the attributes within the __init__
> method.
>
> After reading the widgets.base.py source I discovered that
> member_widgets was to be defined at the "class level" and not in the
> __init__ method because it is then used as
> self.__class__.member_widgets. Why not simply self.member_widgets ???
>
> Actually, my goal was to define a widget where some fields would be
> defined at instanciation time depending on a parameter passed at its
> creation...
The reason for all this fancy class-stuff is that then metaclass-magic can
make things work a bit more declarative.
Take the WidgetsList for example. Without class-level declaration, one
wouldn't get the left-side name:
class MyWidgets(WidgetsList):
foo = Whatever()
Usually you can make things work somehow in update_params or the constructor -
but I don't know how in your case as I didn't work with CompoundWidgets so
far.
But at least you now know why things are the way they are ... :)
Diez
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