Python Insert Operation

The insert() method in Python is used to insert an element to the list at a specified index. It takes two arguments, the index on which the element needs to be inserted and the element itself.

Syntax

The syntax for insert() method is:

list_name.insert(index, element)

Where,

• list_name: The name of the list to which an element is to be inserted.
• index: The index at which the element is to be inserted.
• element: The element to be inserted.

Example

# Program to illustrate insert() method in Python

fruits = ['apple', 'banana', 'cherry']

# Insert an element at a specific position
fruits.insert(1,'orange')

print(fruits)

Output

['apple', 'orange', 'banana', 'cherry']

Explanation

The insert() method is used to insert an element at the specified index of the list. In the above example, an element 'orange' is inserted at position 1 i.e the second position of the fruits list.

Use

The insert() method is used to insert an element at a specified position in a list. It is helpful when we want to add elements to the list in-between the positions of existing elements.

Important Points

• The insert() method inserts an element at a specified position.
• The element can be of any data type such as a string, integer, float, or even another list.
• The index position starts from 0 in Python. If a negative index is provided, the element will be inserted at a position counting from the end of the list.
• When an element is inserted at a specified index, all existing elements are shifted one position to the right.

Summary

In Python, the insert() method is used to insert an element at a specified position in a list. It takes an index and the element to be inserted as arguments. The insert() method is helpful when we want to add elements to the list in-between the positions of existing elements.