Preferred Python idiom for handling non-existing dictionary keys and why?

[John J. Lee]

Quentin Crain <czrpb at yahoo.com> writes:

> (First, I would like to mention I did try to google
> for the answer here!)
> 
> Say I am populating a dictionary with a list and
> appending. I have written it thusly:
[...]

You want the dict.setdefault method.


John