7 Ways To Combine Lists In Python

In this article, I’ll show you 7 different ways to combine lists in Python. I’m sure, there could be many more, but I found these ones the most frequently used ones.

Way 1: Using Extend

list1 = [1,2,3]
list2 = [4,5]
list1.extend(list2)
print(list1) #output ==> [1,2,3,4,5]

Way 2: Using +

list1 = [1,2,3]
list2 = [4,5]
list3 = list1 + list2
print(list3)

Way 3: Using Sum(…)

list1 = [[1,2,3],[4,5]]
list2 = sum(list1,[])
print(list2)

Way 4: Using Append(…)

list1 = [1,2,3]
list2 = [4,5]
for l in list2:
list1.append(l)