On Aug 18, 2011, at 5:01 PM, sandro dentella wrote:

> 
> 
> Not sure what you mean exactly here, but if the point is: "why I want
> to use 'remove'". It's just that when I destroy the GUI widget that
> displays data I'd like to remove the listener to be sure no reference
> tries to keep my object in memory. As of now I see that callbacks are
> still called.

ah OK so I'd build a system of indirection whereby you register a single event 
function with SQLAlchemy, then you have a simple "add/remove" system for that.  
 The event listener would access the current list of GUI listeners, and that's 
the list you mutate.


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