28 Jul
2009
28 Jul
'09
11:29 a.m.
Nick Coghlan wrote:
One specific example I can think of is that object.__hash__ is special cased in a few places due to the way its definition interacts with the definition of comparison operations. Allowing changes to the contents of object's tp_hash slot could lead to much weirdness when it came to __hash__ inheritance.
Just thought of a much better example as I clicked send: the basic numeric types (especially int) are locked down because they are special-cased all over the place (including in the main interpreter eval loop) in order to speed up simple arithmetic. Cheers, Nick. -- Nick Coghlan | ncoghlan@gmail.com | Brisbane, Australia ---------------------------------------------------------------