checking if a list is empty

[Chris Rebert]

On Thu, May 5, 2011 at 11:36 PM, Jabba Laci <jabba.laci at gmail.com> wrote:
> Hi,
>
> If I want to check if a list is empty, which is the more pythonic way?

Option (2), IMO.

> li = []
>
> (1) if len(li) == 0:
> ...

FYI, also equivalent:
if not len(li):
    ...

> or
> (2) if not li:

Cheers,
Chris