length of a tuple or a list containing only one element

[Tim Chase]

> For making a literal tuple, parentheses are irrelevant; only the
> commas matter:

I don't think I'd go so far as to say that the parentheses around 
tuples are *irrelevant*...maybe just relevant in select contexts

  >>> def foo(*args):
  ...     for i, arg in enumerate(args):
  ...             print i, arg
  ...
  >>> foo(1,2)
  0 1
  1 2
  >>> foo((1,2))  # these parens are pretty important :)
  0 (1, 2)

pedantically-grinning-ducktyping-and-running-ly yers,

-tkc