Pre-PEP: Dictionary accumulator methods

[David Eppstein]

In article <GoX_d.9343$qN3.2772 at trndny01>,
 "Raymond Hettinger" <vze4rx4y at verizon.net> wrote:

> Also, in all of my code base, I've not run across a single opportunity to use
> something like unionset(). 

In my code, this would be roughly tied with appendlist for frequency of 
use.

-- 
David Eppstein
Computer Science Dept., Univ. of California, Irvine
http://www.ics.uci.edu/~eppstein/