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  1. Python Functions - W3Schools

    Creating a Function In Python, a function is defined using the def keyword, followed by a function name and parentheses:

  2. Python Functions - GeeksforGeeks

    Oct 4, 2025 · We can define a function in Python, using the def keyword. A function might take input in the form of parameters. The syntax to declare a function is: Here, we define a function using def that …

  3. Python Functions (With Examples) - Programiz

    A function is a block of code that performs a specific task. In this tutorial, we will learn about the Python function and function expressions with the help of examples.

  4. How to Define and Use Functions in Python: A Complete Beginner’s …

    Aug 24, 2025 · Learn how to define and use functions in Python. From basics to advanced features like *args, **kwargs, defaults, and lambdas—complete beginner’s guide.

  5. How to Write Functions in Python: A Step-by-Step Guide

    Mar 20, 2025 · Functions are reusable blocks of code that help make programs modular and easier to maintain. This guide will show you how to define and use functions in Python with detailed …

  6. Defining Your Own Python Function

    Jun 11, 2025 · To define a function in Python, you use the def keyword, followed by the function name and an optional list of parameters enclosed in a required pair of parentheses. You can call and reuse …

  7. How to write Functions in Python? | by Haider Ali - Medium

    Oct 6, 2025 · Functions are defined in Python using the def keyword. Syntax of function definition in Python is: function_body. The function_name is a user-defined name and rules of naming a variable...

  8. Python Functions [Complete Guide] – PYnative

    Jan 26, 2025 · In Python, the function is a block of code defined with a name. We use functions whenever we need to perform the same task multiple times without writing the same code again. It …

  9. Python Function: The Basics Of Code Reuse

    Oct 19, 2025 · Functions are a great way to keep your code short, concise, and readable. By giving a function a well-chosen name, your code will become even more readable because the function name …

  10. Python Functions (With Examples) - TutorialsTeacher.com

    We will now see how to define and use a function in a Python program. A function is a reusable block of programming statements designed to perform a certain task. To define a function, Python provides …