Re: [Traits] dirty trait metadata

David C. Morrill wrote:
> I just added support for the new 'comparison_mode' metadata, which can 
> (legally) have one of the three values:
> 
>     - NO_COMPARE: Change fired on every assignment.
>     - OBJECT_IDENTITY_COMPARE: Change fired if old value is not the same 
> object as the new value.
>     - RICH_COMPARE: Change fired if old value does not compare equal to 
> the new value (the standard traits default).

That is excellent, thanks!  It solves my particular problem.

However, the question about notification on properties remains.  If I 
were to define something like this:

class Data(HasTraits):
    x = Property(Float)

    def _set_x(self, val):
        old = self._x
        self._x = val
        self.trait_property_changed('x', old, val)

d = Data()

Then even if someone did d.set(x=1, trait_change_notify=False), you'd 
get a notification that x changed, right?  My patch "fixed" that perhaps 
incorrectly but the solution was clean and solved the above issue.  I'd 
like to know your thoughts on this.

Thanks!

cheers,
prabhu