docs patch: dicts and sets

[Robert Kern]

7stud wrote:
> On May 19, 12:36 pm, Steve Holden <s... at holdenweb.com> wrote:
>> The last thing I want to read in a language's documentation is an
>> ill-informed and sometimes interminable argument about a particular feature.
> 
> Yet some readers will be able to get to the bottom of an issue they
> are having by reading those comments.

And most will simply be confused.

-- 
Robert Kern

"I have come to believe that the whole world is an enigma, a harmless enigma
 that is made terrible by our own mad attempt to interpret it as though it had
 an underlying truth."
  -- Umberto Eco