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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. 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 …

  6. Python Functions: How to Call & Write Functions - DataCamp

    Nov 22, 2024 · In this tutorial, you'll learn all about Python functions. Follow steps to learn how to write and call functions in Python. Find code examples today!

  7. 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 …

  8. An Essential Guide to Python Functions By Examples

    In this tutorial, you'll learn to define custom Python functions so that you can reuse them in the program.

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

    Mar 20, 2025 · Learn how to define and use functions in Python with this beginner-friendly guide.

  10. Functions - Learn Python - Free Interactive Python Tutorial

    Functions in python are defined using the block keyword "def", followed with the function's name as the block's name. For example: Functions may also receive arguments (variables passed from the caller …