Reinhold Birkenfeld a écrit : > Pierre Barbier de Reuille wrote: > > >>So, what I would suggest is to drop the user-defined augmented >>assignment and to ensure this equivalence : >> >>a X= b <=> a = a X b >> >>with 'X' begin one of the operators. > > > It can be done, but it's unnecessary for mutable objects like > sets or lists. A new object must be created in these cases where > one would suffice.
Well, my point is: the benefit is too small compared to the disadvantage. If you really have a mutable (let say a list with +=) then you do: >>> a.extend(b) and there is no interpretation error possible. BTW, that's what's done in the standard library ... Pierre > > Reinhold -- http://mail.python.org/mailman/listinfo/python-list
