append() method is used to add a single element to the end of a list. It updates the original list directly and can add elements of any data type such as numbers, strings, lists or objects.
Example: In this example, append() adds a new value to the end of the list.
a = [2, 5, 6, 7]
a.append(8)
print(a)
Output
[2, 5, 6, 7, 8]
Explanation: append(8) adds 8 to the end of the list a.
Syntax
list.append(element)
- Parameter: element - Item to be added at the end of the list.
- Return: It does not return any value, it modifies the original list directly.
Examples
Example 1: In this example, we append elements of different data types to a list. Python lists can store multiple types of values together.
a = [1, "Python"]
a.append(3.14)
a.append(True)
print(a)
Output
[1, 'Python', 3.14, True]
Explanation: append() adds 3.14 and True to the end of the list.
Example 2: Here, a list is appended to another list. The appended list becomes a single nested element inside the main list.
a = [1, 2, 3]
a.append([4, 5])
print(a)
Output
[1, 2, 3, [4, 5]]
Explanation: append([4, 5]) adds the entire list as one element, creating a nested list.
Example 3: Here, append() is used inside a loop to add multiple values one by one into a list.
a = []
for i in range(5):
a.append(i)
print(a)
Output
[0, 1, 2, 3, 4]
Explanation: append(i) adds each value of i to the list during every loop iteration.