On Sun, 17 Apr 2011 08:33:47 -0400, D'Arcy J.M. Cain wrote: > On Sun, 17 Apr 2011 16:21:53 +1200 > Gregory Ewing <greg.ew...@canterbury.ac.nz> wrote: >> My idiom for fetching from a cache looks like this: >> >> def get_from_cache(x): >> y = cache.get(x) >> if not y: >> y = compute_from(x) >> cache[x] = y >> return y > > I prefer not to create and destroy objects needlessly. > > def get_from_cache(x): > if not x in cache: > cache[x] = compute_from(x) > return cache[x]
What object(s) do you think are being created and destroyed needlessly? (This is not a rhetorical question.) -- Steven -- http://mail.python.org/mailman/listinfo/python-list
