Arrays in Python give you a huge amount of flexibility for storing, organizing, and accessing data. This is crucial, not least because of Python’s popularity for use in data science.

Use Python lists to store data in one-dimensional rows, ... Python lists are not arrays. One important thing to know about lists in Python is that they aren’t “arrays.” ...

The naive way to do that in Python is to store the numbers in a structure, typically a Python list, ... NumPy offers a broad catalog of built-in routines for manipulating array data.