How to access items of Tuples in Python

Python

Today we are going to learn, How to access items of Tuples in Python using examples. An index starts from 0 for the first element and 1 for the second element and the last item is at n-1 for n items tuple. We use square brackets [] for slicing and pass index to get the value of elements in tuple. The index must be positive or negative integer but not float or other type otherwise typeerror will raise .So let us begin with positive index access first.

1.Access tuple items by positive Index

In this python program, we are accessing tuple elements that is 0th index or at 5th index.So in the result is showing

  • The tuple element at index 0 is ‘C#’
  • The tuple element at index 2 is ‘C++’ .
  • The tuple element at index 5 is Rust

Program Example

langtuple = ('C#','C++','C','Java','Go','Rust')

#Accessing the tuple by index

print('first elemnt of the tuple  = \n',langtuple[0])

print('last element of tuple =\n',langtuple[5])

Output

first elemnt of the tuple  = 
 C#
last element of tuple =
  Rust

2. Access tuple items by Negative Index

We use a negative index that means starting from the end. The -1 refers to the last element -2 is the second last item and so on. The negative index can be used to iterate in reverse.In this example, we are using the -1 index to fetch the last item. When we use the -5 index we get the second element.

Program Example

langtuple = ('C#','C++','C','Java','Go','Rust')

#Accessing the tuple by negative index

print('Last item of tuple = \n',langtuple[-1])
print('First item of tuple =\n',langtuple[-5])

Output

Last item of tuple = 
 Rust
First item of tuple =
 C++

Acces tuple element by Slicing

We can access range of element from using slicing,the slicing operator is : in square brackets.To access all element from beginning to end is [:].We can use negative or positive index that we are using in below example.

3. Access tuple items by Range positive Indexes

We can access items by specific the range in positive and negative. This is like fetching a slice. Let understand with a code example.

In this example, we are accessing with index [2:5], which means starting from the 2nd index and ending at the 4th index. Index 5 is not included in this.

Program Example

langtuple = ('C#','C++','C','Java','Go','Rust')

#Accessing the tuple by postive index

print('Accessing tuple by range of postive indexes  = \n',langtuple[2:5])

Output

Accessing tuple by range of postive indexes  =  

('C', 'Java', 'Go')

4. Access tuple items by Range of Negative indexes

In this example, we are using slicing to access the range of tuples elements. Similarly for [-5:-1], starting from -2 in reverse and ending at -5. The element at -1 will not be included while accessing the elements.

Program Example

langtuple = ('C#','C++','C','Java','Go','Rust')


#Accessing the tuple by negative index

print('Accessing tuple by range of negative indexes =\n',langtuple[-5:-1])

Output

Accessing tuple by range of negative indexes =

('C++', 'C', 'Java', 'Go')

6. Access element of nested Tuples in Python

In this example we are accessing element of nested tuple by using slicing.We can access element of first nested tuple by using [0][0] for first elemnt,[0][1] for second element and so on

  • The second nested tuple we will access first element langtuple [1][1],Second langtuple [1][2] and so on.
  • The Third nested tuple we will access first element langtuple [2][1],Second s[2][2] and so on. 
langtuple = (('C#','C++','C','Java','Go','Rust'),('A','B','C','D'),('X','Y','z','J'))

print(langtuple)
print('First tuple elemnt :',langtuple[0][1],langtuple[0][1])     
print('Seocnd tuple element :',langtuple[1][1],langtuple[1][2])

Output

Accessing tuple by range of negative indexes =
 (('C#', 'C++', 'C', 'Java', 'Go', 'Rust'), ('A', 'B', 'C', 'D'))

First tuple elemnt : C++ C++
Seocnd tuple element : B C

Summary

In his post, we have explored different ways to How to access items of Tuples in Python

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