[Python-talk] can't make meeting

[Lloyd Kvam]

I do have a gotcha to mention:

I have some old python code that used __getattr__ to handle things like
delegating attribute lookup to a component and computing answers for
"synthetic" attributes.

I used properties to add a new computed property and it just did not
work.  Then I realized that I really could not mix __getattr__ based
logic with properties.  

__getattr__ operates against the instance __dict__ and gets control when
an attribute reference is not in __dict__.  Properties are handled
through the class __dict__.  So a reference to an attribute provided by
properties will first trigger the __getattr__ logic.  I removed the
properties and put the processing logic into my __getattr__ handling.

-- 
Lloyd Kvam
Venix Corp
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