In Python, Tuple is a sequence. Each object in the list is accessible with its index. The index starts from "0". Index or the last item in the tuple is "length-1". To access values in tuples, use the square brackets for slicing along with the index or indices to obtain value available at that index.
The slice operator fetches one or more items from the tuple.
Example 1
Put the index inside square brackets to retrieve the item at its position.
It will produce the following output −
Item at 0th index in tup1: Rohan Item at index 2 in tup2: 3
Example 2
Python allows negative index to be used with any sequence type. The "-1" index refers to the last item in the tuple.
It will produce the following output −
Item at 0th index in tup1: d Item at index 2 in tup2: True
Extracting a Subtuple from a Tuple
The slice operator extracts a subtuple from the original tuple.
Subtup = tup1[i:j]
Parameters
-
i − index of the first item in the subtup
-
j − index of the item next to the last in the subtup
This will return a slice from ith to (j-1)th items from the tup1.
Example 3
Take a look at the following example −
It will produce the following output −
Items from index 1 to 2 in tup1: ('b', 'c')
Items from index 0 to 1 in tup2: (25.5, True)
Example 4
While slicing, both operands "i" and "j" are optional. If not used, "i" is 0 and "j" is the last item in the tuple. Negative index can be used in slicing. See the following example −
It will produce the following output −
Items from index 1 to last in tup1: ('b', 'c', 'd')
Items from index 0 to 1 in tup2: (25.5, True)
Items from index 2 to last in tup3: (3, 4)
Items from index 0 to index last in tup4: ('Rohan', 'Physics', 21, 69.7
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