Riven
Riven
Python variable
Python variables are a fundamental concept in programming, allowing you to store, modify, and manipulate data
What is a Variable?
A variable in Python is a symbolic name that refers to a value. It allows you to store data that can be used and modified throughout your code. Unlike some programming languages, Python uses dynamic typing, meaning you don’t need to declare the type of a variable when you create it.
Example
Creating Variables
Creating a variable in Python is straightforward. You assign a value to a name using the assignment operator
Syntax
Example
Variable Scope
Variable scope determines the accessibility of a variable in different parts of your code. Python has three main types of variable scopes: global, local, and nonlocal.
1.Global Variables
A global variable is defined outside of any function and can be accessed anywhere in the program.
2.Local Variables
A local variable is defined within a function and can only be accessed inside that function.
3.Nonlocal Variables
Nonlocal variables are used in nested functions. They allow you to modify variables from the enclosing (non-global) scope.
