Checking if elements are empty

[Lawrence D'Oliveiro]

In message <mailman.93.1189003016.2658.python-list at python.org>, Chris Mellon
wrote:

> On 9/5/07, Steve Holden <steve at holdenweb.com> wrote:
>> Doran, Harold wrote:
> 
>> >
>> > Is there a way to check if the first element of y is null?
>> >
>>
>> len(y[0]) == 0
>>
>> would be the obvious way, assuming "null" means "the null string".
>>
> 
> Better spelled as
> 
> if y[0]:

Not a good idea.