On Feb 26, 8:14 am, Marc 'BlackJack' Rintsch <[EMAIL PROTECTED]> wrote: > On Tue, 26 Feb 2008 06:02:12 -0800, bearophileHUGS wrote: > > This is a real difference, that has real impact on the programs I > > write, so I often use the if/else approach, despite the dict.get() > > method being semantically fitter and shorter. > > So can the dict.get() method be speed up? And if not, why? > > I guess it's the method lookup that's the slow part. Factor it out of the > loop and measure again:: > > adict_get = adict.get > for _ in xrange(M): > for k in keys1: > r = adict_get(k, None) > for k in keys2: > r = adict_get(k, None) > > Ciao, > Marc 'BlackJack' Rintsch
Can't be. The string 'get' is only hashed once, since it's hard-coded into the script, and looking it up can't be any slower than looking up __getitem__. -- http://mail.python.org/mailman/listinfo/python-list
