How to make a global python function

Learn how to make a Python function global with an example, so you can use it anywhere in your program.

Creating a Global Python Function

Python functions are blocks of reusable code that can be called in other parts of the program to perform a specific task. In this article, we'll discuss how to create a global Python function.

A global function is one that can be used anywhere in the program, regardless of where it was defined. To create a global function, the keyword global should be used inside the function definition. Here's an example of a global function that adds two numbers:

def add_two(x, y):
    global result
    result = x + y
    return result

In this example, the keyword global is used to declare the result variable as global. This means that the result variable can be accessed from outside the function. The function itself takes two arguments, x and y, and returns their sum. Once the function is called, the result variable will be available to be used anywhere in the program.

It's important to note that global variables should be used sparingly as they can lead to unexpected results. If two functions use the same global variable, it can be difficult to debug the program as the results of one function may be affected by the other. So it's best to use global variables only when absolutely necessary.

In summary, global functions are useful when you need to access a function's result from anywhere in your program. To create a global function, simply include the keyword global in the function definition. However, it's important to use global variables sparingly as they can lead to unexpected results.