How to concatenate two lists in Python?

In Python, we can use + operator to concatenate two or multiple lists.

Python Source Code: Concatenation of Two Lists

list_1 = [1, 2, 3, 4]
list_2 = ["one", "two", "three"]

concatenated_list = list_1 + list_2

print("Concatenated list is: ", concatenated_list)

Output

Concatenated list is:  [1, 2, 3, 4, 'one', 'two', 'three']

Alternatively, in Python >= 3.5, we can use unpacking of lists within list literals to concatenate any iterables. See example below:

list_1 = [1, 2, 3, 4]
list_2 = ["one", "two", "three"]

concatenated_list = [*list_1, *list_2]

print("Concatenated list is: ", concatenated_list)

Output

Concatenated list is:  [1, 2, 3, 4, 'one', 'two', 'three']