Appending Elements to Lists in Python

Today we’ll learn how to append elements to lists using the append method.

Here’s the video version of this article:

Lists don’t have a fixed size. They can grow at runtime. You use append to add new elements:

>>> names = ['Alice', 'Bernard', 'Steve', 'Emma', 'Sam']
>>> names.append("Jenny")
>>> names
['Alice', 'Bernard', 'Steve', 'Emma', 'Sam', 'Jenny']

You also use the append method to add a list as a sublist:

>>> authors = ["Austen", ["Smith", "Garson"], "Bennet"]
>>> authors.append(["Jackson", "Warwick"])
>>> authors
['Austen', ['Smith', 'Garson'], 'Bennet', ['Jackson', 'Warwick']]

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You can define empty lists. Then you can add elements to them:

>>> scores = []
>>> scores
[]

>>> scores.append(5)
>>> scores.append(14)
>>> scores
[5, 14]

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