How do you append a list of data in a list in python?


In this tutorial, we will learn different ways to add elements to a list in Python.

There are four methods to add elements to a List in Python.

  1. append(): append the element to the end of the list.
  2. insert(): inserts the element before the given index.
  3. extend(): extends the list by appending elements from the iterable.
  4. List Concatenation: We can use the + operator to concatenate multiple lists and create a new list.


This function adds a single element to the end of the list.

fruit_list = ["Apple", "Banana"]

print(f'Current Fruits List {fruit_list}')

new_fruit = input("Please enter a fruit name:\n")


print(f'Updated Fruits List {fruit_list}')


Current Fruits List ['Apple', 'Banana']
Please enter a fruit name:
Updated Fruits List ['Apple', 'Banana', 'Orange']

This example added Orange to the end of the list.


This function adds an element at the given index of the list.

num_list = [1, 2, 3, 4, 5]

print(f'Current Numbers List {num_list}')

num = int(input("Please enter a number to add to list:\n"))

index = int(input(f'Please enter the index between 0 and {len(num_list) - 1} to add the number:\n'))

num_list.insert(index, num)

print(f'Updated Numbers List {num_list}')


Current Numbers List [1, 2, 3, 4, 5]
Please enter a number to add to list:
Please enter the index between 0 and 4 to add the number:
Updated Numbers List [1, 2, 20, 3, 4, 5]

This example added 20 at the index of 2. 20 has been inserted into the list at this index.


This function adds iterable elements to the list.

extend_list = []

extend_list.extend([1, 2])  # extending list elements


extend_list.extend((3, 4))  # extending tuple elements


extend_list.extend("ABC")  # extending string elements



[1, 2]
[1, 2, 3, 4]
[1, 2, 3, 4, 'A', 'B', 'C']

This example added a list of [1, 2]. Then it added a tuple of (3, 4). And then it added a string of ABC.

List Concatenation

If you have to concatenate multiple lists, you can use the + operator. This will create a new list, and the original lists will remain unchanged.

evens = [2, 4, 6]
odds = [1, 3, 5]

nums = odds + evens

print(nums)  # [1, 3, 5, 2, 4, 6]

This example added the list of evens to the end of the list of odds. The new list will contain elements from the list from left to right. It’s similar to the string concatenation in Python.


Python provides multiple ways to add elements to a list. We can append an element at the end of the list, and insert an element at the given index. We can also add a list to another list. If you want to concatenate multiple lists, then use the overloaded + operator


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How do you append a list within a list in Python?

How to append one list to another list in Python.
Use list. extend() to combine two lists. Use the syntax list1. extend(list2) to combine list1 and list2 ..
Use list. append() to add a list inside of a list. Use the syntax list1. ... .
Other solutions. Use itertools.chain() to combine many lists..

Can you append a list to a list Python?

append() adds a list inside of a list. Lists are objects, and when you use . append() to add another list into a list, the new items will be added as a single object (item).

How do you append multiple lists in one list Python?

Using + operator The + operator does a straight forward job of joining the lists together. We just apply the operator between the name of the lists and the final result is stored in the bigger list. The sequence of the elements in the lists are preserved.

What is the use of append () in list give example?

Python's append() function inserts a single element into an existing list. The element will be added to the end of the old list rather than being returned to a new list. Adds its argument as a single element to the end of a list.