Mastering Python Scripting for System Administrators

Tuples

Python's tuple data structure is immutable, meaning we cannot change the elements of the tuples. Basically, a tuple is a sequence of values that are separated by commas and are enclosed in parentheses ( ). Like lists, tuples are an ordered sequence of elements:

>>> t1 = 'h', 'e', 'l', 'l', 'o'

Tuples are enclosed in parentheses ( ):

>>> t1 = ('h', 'e', 'l', 'l', 'o')

You can also create a tuple with a single element. You just have to put a final comma in the tuple:

>>> t1 = 'h',>>> type(t1)<type 'tuple'>

A value in parentheses is not a tuple:

>>> t1 = ('a')>>> type(t1)<type 'str'>

We can create an empty tuple using the tuple() function:

>>> t1 = tuple()>>> print (t1)()

If the argument is a sequence (string, list, or tuple), the result ...