James Y Knight wrote: > However, last time this topic came up, this Tim Peters guy argued against it. > ;) > > Quoting http://mail.python.org/pipermail/python-dev/2004-November/050049.html: > >> Python doesn't promise to return a postive integer for id(), although >> it may have been nicer if it did. It's dangerous to change that now, >> because some code does depend on the "32 bit-ness as a signed integer" >> accident of CPython's id() implementation on 32-bit machines. For >> example, code using struct.pack(), or code using one of ZODB's >> specialized int-key BTree types with id's as keys.
can anyone explain the struct.pack and ZODB use cases? the first one doesn't make sense to me, and the other relies on Python *not* behaving as documented (which is worse than relying on undocumented behaviour, imo). </F> _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
