On Thu, 19 Jul 2007, Kent Johnson wrote: > Attribute lookup seems to have gotten better since Beazley wrote; here > is a test program that uses three ways to access math.sqrt - module > attribute, global name, local name. Note that in the third version, all > three names (sqrt, d, i) are local: . . . > Sample output: > 745.465993881 > 561.167001724 > 369.343996048
I'm surprised the difference between the second and third versions is so dramatic. I get a result consistent with that (although you obviously have a much faster CPU than I!). Why is that so much faster? A smaller namespace to look through? Or the search being short-cut by finding in in the local space and therefore not needing to search the global? Something else? _______________________________________________ Tutor maillist - [email protected] http://mail.python.org/mailman/listinfo/tutor
