Variables and Data Structures in Python
Python is a versatile programming language known for its simplicity and readability. One of the key aspects of Python is its flexible handling of variables and a variety of built-in data structures. In this article, we'll explore the fundamentals of variables and the most commonly used data structures in Python. Variables in Python Variables are used to store data in a program. In Python, you don’t need to declare the type of a variable explicitly. The type is determined dynamically at runtime. Here are some basic rules and examples: Variable Declaration x = 10 # Integer name = "Alice" # String price = 19.99 # Float is_active = True # Boolean Naming Rules Variable names must start with a letter or an underscore (_). They cannot start with a number. Names are case-sensitive (e.g., Age and age are different). Avoid using reserved keywords like class , if , or while . Dynamic Typing Variables can change their type at runtime: x = 5 # x is an integer x = ...
