TUPLES (IMMUTABLE LISTS)

Python supports a data type called a tuple that consists of comma-separated values without brackets (square brackets are for lists, round brackets are for arrays, and curly braces are for dictionaries). Various examples of tuples can be found online:

https://docs.python.org/3.6/tutorial/datastructures.html#tuples-and-sequences

The following code block illustrates how to create a tuple and create new tuples from an existing type.

Define a tuple t as follows:

>>> t = 1,'a', 2,'hello',3

>>> t

(1, 'a', 2, 'hello', 3)

Display the first element of t:

>>> t[0]

1

Create a tuple v containing 10, 11, and t:

>>> v = 10,11,t

>>> v

(10, 11, (1, 'a', 2, 'hello', 3))

Try modifying an element of t (which is immutable):

>>> t[0] = 1000

Traceback (most recent call last):

  File "<stdin>", line 1, in <module>

TypeError: 'tuple...