On Tue, Oct 5, 2010 at 12:04 AM, Noufal Ibrahim <nou...@gmail.com> wrote:
> On Mon, Oct 04 2010, Nitin Dahra wrote: > > [...] > > > > Apparently, 'in' is also faster than 'has_key' > > [...] > > A few quick numbers. > > In [2]: foo = {} # Without the key > In [12]: timeit.timeit(lambda: 2 in foo) > Out[12]: 0.2220299243927002 > > In [13]: timeit.timeit(lambda: foo.has_key(2)) > Out[13]: 0.32393407821655273 > > In [14]: foo = {2 : "Hello"} # With the key > > In [15]: timeit.timeit(lambda: 2 in foo) > Out[15]: 0.21776700019836426 > > In [16]: timeit.timeit(lambda: foo.has_key(2)) > Out[16]: 0.3091580867767334 > > > Also, "in" works for iterables other than dict's whereas has_key > doesn't. Better duck typing. > > thanks for the quick stats, although i prefer in for the type compatibility now i have 1 more reason in favour of using in :) -- > _______________________________________________ > BangPypers mailing list > BangPypers@python.org > http://mail.python.org/mailman/listinfo/bangpypers > _______________________________________________ BangPypers mailing list BangPypers@python.org http://mail.python.org/mailman/listinfo/bangpypers