On Mon, 2010-04-05 at 11:38 +0000, Jason Friedman wrote: > I saw this posted in the July issue but did not see any follow-up there: > > $ python > Python 2.6.4 (r264:75706, Dec 7 2009, 18:43:55) > [GCC 4.4.1] on linux2 > Type "help", "copyright", "credits" or "license" for more information. > >>> a = 500 > >>> b = 500 > >>> a == b > True > >>> a is b > False > >>> p = 50 > >>> q = 50 > >>> p == q > True > >>> p is q > True > >>>
This topic shows here every 3 weeks or so... The short of it: CPython optimizes small integers. It's a feature. Don't rely on it (Google for the rest). -a -- http://mail.python.org/mailman/listinfo/python-list
