Tim Peters wrote:
Note that even adding a "frozen" flag would add 4 bytes to every freezable object on most machines. That's why I'd rather .freeze() replace the type pointer and .unfreeze() restore it. No time or space overhead; no cluttering up the normal-case (i.e., unfrozen) type implementations with new tests.
Note that Fred's weak ref implementation also need a flag on every weak referencable object (at least last time I looked at his patches). Why not add a flag byte or word to these objects -- then we'd have 8 or 16 choices of what to do with them ;-) -- Marc-Andre Lemburg ______________________________________________________________________ Company: http://www.egenix.com/ Consulting: http://www.lemburg.com/ Python Pages: http://www.lemburg.com/python/