Tuple Syntax and ()

[Steve Holden]

tactics40 at gmail.com wrote:
> I keep accidently trying to declare t-tuples as mytuple = (myitem)
> 
> I know this doesn't work and that you need the trailing comma, but
> reading something online, I just came to realize.... the parenthesises
> don't have any special meaning in relation to tuples at all, do they?
> 
Give that (?)man a cigar! The only time the parentheses are necessary is 
when you need to disambiguate - the most frequent needs are:

() for an empty tuple: there's no other way to express that without 
using tuple(), and

f((a, b, ...)) to provide a single tuple argument to a function.

regards
  Steve
-- 
Steve Holden       +44 150 684 7255  +1 800 494 3119
Holden Web LLC/Ltd          http://www.holdenweb.com
Love me, love my blog  http://holdenweb.blogspot.com
Recent Ramblings     http://del.icio.us/steve.holden