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Python List remove() Method

Python List pop() Method

Last Updated : 24 Oct, 2024

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The pop() method is used to remove an element from a list at a specified index and return that element. If no index is provided, it will remove and return the last element by default. This method is particularly useful when we need to manipulate a list dynamically, as it directly modifies the original list.

Let’s take an example to remove an element from the list using pop():

Python

a = [10, 20, 30, 40] # Remove the last element from list a.pop() print(a)

Output

[10, 20, 30]

Explanation: a.pop() removes the last element, which is 40. The list a is now [10, 20, 30].

Table of Content

Syntax of pop() method
Using pop() with an index
Using pop() without an index
Handling IndexErrors

Syntax of pop() method

list_name.pop(index)

Parameters

index (optional): index of an item to remove. Defaults to -1 (last item) if argument is not provided.

Return Value

Returns the removed item from the specified index
Raises IndexError if the index is out of range.

Using pop() with an index

We can specify an index to remove an element from a particular position (index) in the list.

Python

a = ["Apple", "Orange", "Banana", "Kiwi"] # Remove the 2nd index from list val = a.pop(2) print(val) print(a)

Output

Banana ['Apple', 'Orange', 'Kiwi']

Explanation:

a.pop(2) removes the element at index 2, which is “Banana“.
val stores the value Banana.
The list a is now [“Apple”, “Orange”, “Kiwi”].

Using pop() without an index

If we don’t pass any argument to the pop() method, it removes the last item from the list because the default value of the index is -1.

Python

a = [10, 20, 30, 40] # Remove the last element from list val = a.pop() print(val) print(a)

Output

40 [10, 20, 30]

Explanation:

a.pop() removes the last element, which is 40.
val stores the value 40.
After using pop(), the list a is updated to [10, 20, 30].

Handling IndexErrors

The pop() method will raise an IndexError if we try to pop an element from an index that does not exist. Let’s see an example:

Python

a = [1, 2, 3] a.pop(5)

Output:

IndexError: pop index out of range

Explanation:

The list a has only three elements with valid indices 0, 1, and 2.
Trying to pop from index 5 will raise an IndexError.

Related Articles:

Python – Remove first element of list
Python – Remove rear element from list
Python | Remove given element from the list

Python List remove() Method

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