Arrays in Python give you a huge amount of flexibility for storing, organizing, ... That’s because an array is a data structure that uses an “index” or “key” to store each value.

Learn how to create, index, slice, reshape, and perform arithmetic operations on arrays using NumPy, the most popular Python library for data science.

Python 'lists' are more flexible than arrays as they can contain different data types and their length can vary in size. It is often convenient to use a list where you do not know what the data ...