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home / developersection / forums / explain the difference between "append()" and "extend()" methods in python lists.
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Explain the difference between "append()" and "extend()" methods in Python lists.

Utpal Vishwas 352 26 Jun 2023

Explain the difference between "append()" and "extend()" methods in Python lists.

python python
Updated 27 Jun 2023
Utpal Vishwas
Utpal Vishwas

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I am Utpal Vishwas from Uttar Pradesh. Have completed my B. Tech. course from MNNIT campus Prayagraj in 2022. I have good knowledge of computer networking.

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1 Answers

Aryan Kumar
Aryan Kumar 27 Jun 2023
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Sure. The append() and extend() methods are both used to add elements to a list in Python. However, they work in slightly different ways.

The append() method adds a single element to the end of a list. For example, the following code adds the number 5 to the end of the list list1:

Python

list1 = [1, 2, 3]
list1.append(5)
print(list1)

This will print the list [1, 2, 3, 5].

The extend() method adds the elements of an iterable to the end of a list. For example, the following code adds the numbers 6, 7, and 8 to the end of the list list1:

Python

list1 = [1, 2, 3]
list1.extend([6, 7, 8])
print(list1)

This will print the list [1, 2, 3, 6, 7, 8].

The main difference between the append() and extend() methods is that the append() method only adds a single element to the end of a list, while the extend() method can add multiple elements to the end of a list.

Here is a table that summarizes the differences between the append() and extend() methods:

Method Description
append() Adds a single element to the end of a list.
extend() Adds the elements of an iterable to the end of a list.
Argument A single element or an iterable.
Returns None.
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