Intro to Python for Computer Science and Data Science: Learning to Program with AI, Big Data and The Cloud

5.10 Other List Methods

Lists also have methods that add and remove elements. Consider the list color_names:

In [1]: color_names = ['orange', 'yellow', 'green']

Inserting an Element at a Specific List Index

Method insert adds a new item at a specified index. The following inserts 'red' at index 0:

In [2]: color_names.insert(0, 'red')

In [3]: color_names
Out[3]: ['red', 'orange', 'yellow', 'green']

Adding an Element to the End of a List

You can add a new item to the end of a list with method append:

In [4]: color_names.append('blue')

In [5]: color_names
Out[5]: ['red', 'orange', 'yellow', 'green', 'blue']

Adding All the Elements of a Sequence to the End of a List

Use list method extend to add all the elements of another sequence ...