How to force a single number to be a tuple

[Roy Smith]

In article <mailman.1138.1091636758.5135.python-list at python.org>,
 "Jinming Xu" <cybermanxu at hotmail.com> wrote:

> Hi Folks,
> 
> I have a number sequence, which is put into a tuple like this:
> 
> y=2, 3.0, 4.5
> 
> I can manipulate the sequence as a tuple when it has more than 1 number. But 
> when the sequence has only 1 number, like
> 
> y=2
> 
> I have trouble to manipulate it as a tuple.  I guess there must be a way to 
> forece a single number to be a tuple. Could anyone please tell me that?

You're going to get a zillion responses to this one.

The syntax is a bit funky:

y = (2,)