Data Structures

As programs grow, you often need to store more than one value.

For example:

• Many student names
• Many product prices
• User settings
• Groups of scores
• Unique tags

Saving each value in a separate variable becomes hard to manage.

Data structures solve this problem.

A data structure is a way to organize and store data so it is easy to use.

What You Will Learn

• How lists store many values
• How tuples store fixed values
• How dictionaries use keys and values
• How sets store unique items
• How list comprehensions work
• How to combine nested data
• Useful data structure methods
• How data structures are used in real projects

Practical Focus

You will build beginner-friendly programs such as:

• Contact list
• Student records
• Inventory tracker
• Shopping cart
• Simple database

Why This Module Matters

Most real programs need to store collections of data.

Data structures help you organize information, update values, search data, and build larger applications.

Success Goal

By the end of this module, you will be able to choose the right data structure and use it to build practical Python programs.