On Sun, 23 Mar 2008 08:53:02 -0700
John Nagle <[EMAIL PROTECTED]> wrote:
> What's the cheapest way to test for an empty dictionary in Python?
>
> if len(dict.keys() > 0) :
>
> is expensive for large dictionaries, and makes loops O(N^2).
Try this:
if dict:
It should be faster as it only checks whether or not there are
any members and does not run keys() or len() on the dictionary. Of
course, you should test it.
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