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  1. Python Functions - W3Schools

    Python Functions A function is a block of code which only runs when it is called. A function can return data as a result. A function helps avoiding code repetition.

  2. How To Define A Function In Python?

    Feb 10, 2025 · Learn how to define a function in Python using the `def` keyword, parameters, and return values. This step-by-step guide includes examples for easy understanding

  3. 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 …

  4. 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.

  5. 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 …

  6. Functions in Python (with Examples) - PySeek

    Mar 28, 2025 · In this tutorial, we will understand everything about functions in Python, including their types, how to define and use them, and provide various practical examples. What is a …

  7. Python Function Definitions: A Comprehensive Guide

    Apr 22, 2025 · Functions are the building blocks of modular programming in Python. They allow you to group a set of statements together to perform a specific task. Using functions, you can …

  8. Python Function: The Basics Of Code Reuse

    Oct 19, 2025 · Functions are the real building blocks of any programming language. We define a Python function with the def keyword. But before we start doing so, let’s first go over the …

  9. 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 …

  10. An Essential Guide to Python Functions By Examples

    In this tutorial, you’ll learn how to define user-defined Python functions. Here’s a simple function that shows a greeting: print('Hi') Code language: Python (python) This example shows the …