How to Add Two List in Python

In this article we will see how to add two lists in Python. If you are looking for “how to merge two list in python”, this article will help you for the same.

Method 1: Using + operator

list1 = [1, 2, 3]
list2 = [1, 4, 9]

list3 = list1 + list2

print("The concatenated list :"+ str(list3))

Output:

The concatenated list :[1, 2, 3, 1, 4, 9]

Method 2: Using list comprehension

list1 = [1, 2, 3]
list2 = [1, 4, 9]

list3 = [j for i in [list1, list2] for j in i]

print("The concatenated list :"+ str(list3))

Output:

The concatenated list :[1, 2, 3, 1, 4, 9]

Method 3: Using extend()

list1 = [1, 2, 3]
list2 = [1, 4, 9]

list1.extend(list2)

print("The concatenated list :"+ str(list1))

Output:

The concatenated list :[1, 2, 3, 1, 4, 9]