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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. 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. 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 …

  5. What is Def in Python? Defining Functions Explained

    The def keyword in Python is used to define a function. It is the starting point for writing a function and is followed by the function name and parameters. Learning what def means in Python is …

  6. Python Functions for Beginners: Complete Guide With Examples

    Dec 1, 2025 · Learn Python functions with clear examples: definition, calling, parameters, defaults, and keyword arguments.

  7. Defining Functions - OpenPython

    In Python, functions let you package code into reusable blocks. Instead of rewriting the same logic again and again, you can define a function once and call it whenever you need. This makes …

  8. How to define a function in Python - Pluralsight

    Nov 30, 2025 · A guide on how to create and use a function in Python, so you can avoid copy-pasting your code, using a simple library management system as an example.

  9. 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.

  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 …