Adding multiple elements to a list in Python

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Adding multiple elements to a list in Python

Author：JIYIK Last Updated：2025/05/09 Views：

List is a mutable data structure in Python. It can contain values of different types.

This article will discuss some methods to append single or multiple elements to a Python list.

`append()`Append a single element in a Python list using the

append()Method adds a single value to the end of a list.

The complete sample code is as follows:

lst = [2, 4, 6, "python"]
lst.append(6)
print("The appended list is:", lst)

Output:

The appended list is: [2, 4, 6, 'python', 6]

Similarly, to add a new value, we will use another method to add a new value after append()the value in the list .6

lst = [2, 4, 6, "python"]
lst.append(6)
lst.append(7)
print("The appended list is:", lst)

Output:

The appended list is: [2, 4, 6, 'python', 6, 7]

`extend()`Add multiple elements to a Python list using the

This method will extend the list by appending all the items to the iterable list. We use the append list created in the above code and append the new list elements to it.

The complete sample code is as follows:

lst = [2, 4, 6, "python"]
lst.extend([8, 9, 10])
print("The appended list is:", lst)

Output:

The appended list is: [2, 4, 6, 'python', 8, 9, 10]

Appending multiple elements in Python list using concatenation method

+Symbol is used to concatenate and merge two lists. The complete example code is given below.

lst1 = [2, 4, 6, 8]
lst2 = ["python", "java"]
lst3 = lst1 + lst2
print("The Concatenated List is:", lst3)

Output:

The Concatenated List is: [2, 4, 6, 8, 'python', 'java']

`itertools.chain`Add multiple elements to a Python list using the

chain()The function is itertoolsimported from . chainThe purpose of the function is the same as the concatenation operator +. It will combine the elements of all lists into a new list. The performance of this method is much more efficient than other methods.

The complete sample code is as follows:

from itertools import chain

lst1 = [2, 4, 6, 8]
lst2 = ["python", "java"]
final_list = list(chain(lst1, lst2))
print("The Final List is:", final_list)

Output:

The Final List is: [2, 4, 6, 8, 'python', 'java']

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