Essential Concepts: Variables and Data Types in Python

Beginner #3: Learn how to name, declare, and use variables in Python

Table of Contents

⦁ What Are Variables?
∘ Key Characteristics of Variables
⦁ Naming Variables
∘ General Naming Rules
∘ Naming Conventions
∘ Variable Naming in Loops
⦁ What Are Data Types in Python?
∘ Data Types in Python
∘ Why Are Data Types Essential in Python?
⦁ Summary
⦁ Reference

Photo by Jorge Jesus

What Are Variables?

Variables are fundamental building blocks in programming that act as containers for storing data. A variable holds a value that can be used and manipulated throughout a program. Consider variables as labels, allowing you to reference data without interacting directly with the raw values.

Key Characteristics of Variables

Name and Assignment
Each variable has a unique name for its value. The process of assigning a value to a variable is called a variable assignment.