Paul Rubin wrote: > Steven D'Aprano <st...@pearwood.info> writes: >> It is never >> correct to avoid using "is" when you need to compare for identity. > > When is it ever necessary to compare for identity?
For example when providing a unique "sentinel" value as a function argument. The parameter must be tested for identity with the sentinel. regards Steve -- Steve Holden +1 571 484 6266 +1 800 494 3119 Holden Web LLC http://www.holdenweb.com/ Want to know? Come to PyCon - soon! http://us.pycon.org/ -- http://mail.python.org/mailman/listinfo/python-list
