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.

Feb 14, 2026 · 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 …

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

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.

Oct 19, 2025 · Learn how to create and use a Python function with Python's def keyword, why functions are useful, and learn about variable scope.

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 …

Jan 26, 2025 · Python function is a block of code defined with a name. Learn to create and use the function in detail. Use function argument effectively.

Feb 2, 2026 · Learn how to define functions in Python with this clear guide covering syntax, arguments, return values, and practical examples for beginners.

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

A function is a reusable block of programming statements designed to perform a certain task. To define a function, Python provides the def keyword. The following is the syntax of defining a function.