Hallvard B Furuseth wrote: > Stefan Behnel writes: >> João Valverde wrote: >>> Besides some interface glitches, like returning None >>> on delete if I recall correctly. >> That's actually not /that/ uncommon. Operations that change an object are >> not (side-effect free) functions, so it's just purity if they do not have a >> return value. > > It's purity that they don't return the modified tree/dict/whatever. > They can still return the deleted element and remain pure.
Fair enough. Stefan -- http://mail.python.org/mailman/listinfo/python-list
