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https://stackoverflow.com › questions › 423379 › how-to-use-a-global-variable-in-a-function

python - How to use a global variable in a function? - Stack Overflow

There are 2 ways to declare a variable as global: 1. assign variable inside functions and use global line. def declare_a_global_variable(): global global_variable_1 global_variable_1 = 1 # Note to use the function to global variables declare_a_global_variable() 2. assign variable outside functions: global_variable_2 = 2

https://realpython.com › python-use-global-variable-in-function

Using and Creating Global Variables in Your Python Functions

In this tutorial, you'll learn how to use global variables in Python functions using the global keyword or the built-in globals() function. You'll also learn a few strategies to avoid relying on global variables because they can lead to code that's difficult to understand, debug, and maintain.

Using and Creating Global Variables in Your Python Functions

https://www.w3schools.com › python › python_variables_global.asp

Python - Global Variables - W3Schools

Variables that are created outside of a function (as in all of the examples in the previous pages) are known as global variables. Global variables can be used by everyone, both inside of functions and outside.

https://stackoverflow.com › questions › 41369408

How can I change a global variable from within a function?

If you want to change the values of local variables inside a function you need to use the global keyword.

https://diveintopython.org › learn › functions › global-variables

Global Variables in Python Functions - How to Use, Set and Update

In Python, global variables can be accessed and modified from any function or module in the program. However, assigning a value to a global variable inside a function creates a new local variable within that function. Here are some examples of how the scope of global variables works in Python:

Global Variables in Python Functions - How to Use, Set and Update

https://stackoverflow.com › questions › 10588317

Python function global variables? - Stack Overflow

You can directly access a global variable inside a function. If you want to change the value of that global variable, use "global variable_name". See the following example: var = 1 def global_var_change(): global var var = "value changed" global_var_change() #call the function for changes print var

https://www.delftstack.com › fr › howto › python › global-variables-in-python-and-how-to...

Variables globales et comment changer d'une fonction en Python

Dans cet article python, nous découvrirons les variables globales et les mots-clés globaux en Python. Nous verrons comment changer une variable globale à partir d'une fonction en Python. Nous apprendrons également comment créer et accéder à une variable globale.

https://realpython.com › lessons › using-global-variables-functions

Using Global Variables in Functions – Real Python

Using Global Variables in Python Functions. Global variables are those that you can access and modify from anywhere in your code. In Python, you’ll typically defined global variables at the module level, so the containing module is their scope. As…

https://diveintopython.org › fr › learn › functions › global-variables

Variables globales en Python : Utilisation & Mise à jour

Les variables globales en Python sont les variables qui sont définies à l'extérieur de toute fonction dans un programme. Elles peuvent être accédées et modifiées par n'importe quelle fonction ou module du programme. La portée d'une variable en Python définit son accessibilité.

Variables globales en Python : Utilisation & Mise à jour

https://thispointer.com › python-how-to-use-global-variables-in-a-function

Python : How to use global variables in a function - thisPointer

Global variable is accessible in any function and local variable has scope only in the function it is defined. For example, Copy to clipboard. # Global variable. total = 100. def test(): # Local variable. marks = 19. print('Marks = ', marks) print('Total = ', total)