Add Variables to Tuple


Question

I am learning Python and creating a database connection. While trying to add to the DB, I am thinking of creating tuples out of information and then add them to the DB.

What I am Doing: I am taking information from the user and store it in variables. Can I add these variables into a tuple? Can you please help me with the syntax?

Also if there is an efficient way of doing this, please share...

EDIT Let me edit this question a bit...I only need the tuple to enter info into the DB. Once the information is added to the DB, should I delete the tuple? I mean I don't need the tuple anymore.

1
243
8/9/2014 12:51:42 AM

Accepted Answer

Tuples are immutable; you can't change which variables they contain after construction. However, you can concatenate or slice them to form new tuples:

a = (1, 2, 3)
b = a + (4, 5, 6)
c = b[1:]

And, of course, build them from existing values:

   name = "Joe"
   age = 40
   location = "New York"
   joe = (name, age, location)
314
9/4/2009 6:39:39 PM

You can start with a blank tuple with something like t = (). You can add with +, but you have to add another tuple. If you want to add a single element, make it a singleton: t = t + (element,). You can add a tuple of multiple elements with or without that trailing comma.

>>> t = ()
>>> t = t + (1,)
>>> t
(1,)
>>> t = t + (2,)
>>> t
(1, 2)
>>> t = t + (3, 4, 5)
>>> t
(1, 2, 3, 4, 5)
>>> t = t + (6, 7, 8,)
>>> t
(1, 2, 3, 4, 5, 6, 7, 8)

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