Dictionary of lists strange behaviour

[John Posner]

On 11/9/2010 1:43 PM, Terry Reedy wrote:
> ... List *is* useful as an initializer for
> collecitons.defaultdicts.

And it was useful when several members of this forum helped me to 
develop a prime-number generator.

See http://www.mail-archive.com/python-list@python.org/msg288128.html.

(I meant to post this to the "functions, list, default parameters" 
thread, but never got a round tuit.)

-John