> It would be good to have a clear exposition of the pros and cons of > __new__ usage.
It is there mostly because __init__ would not work on immutable types. OTOH, you probably do not want to use __new__ on mutable types (once I was caught by this trap, google for "overriding list.__new__" if you are interested). Michele Simionato -- http://mail.python.org/mailman/listinfo/python-list
