Join Two Lists
There are several ways to join, or concatenate, two or more lists in Python.
One of the easiest ways are by using the + operator.
Example
Join two list:
list1 = [“a”, “b”, “c”]
list2 = [1, 2, 3]
list3 = list1 + list2
print(list3)
Output:
[‘a’, ‘b’, ‘c’, 1, 2, 3]
Another way to join two lists is by appending all the items from list2 into list1, one by one:
Example
Append list2 into list1:
list1 = [“a”, “b” , “c”]
list2 = [1, 2, 3]
for x in list2:
list1.append(x)
print(list1)
Output:
[‘a’, ‘b’, ‘c’, 1, 2, 3]
Or you can use the extend() method, which purpose is to add elements from one list to another list:
Example
Use the extend() method to add list2 at the end of list1:
list1 = [“a”, “b” , “c”]
list2 = [1, 2, 3]
list1.extend(list2)
print(list1)
Output:
[‘a’, ‘b’, ‘c’, 1, 2, 3]