A function is a block of code which only runs when it is called. You can pass data, known as parameters, into a function. A function can return data as a result. In Python a function is defined using the def keyword: To call a function, use the function name followed by parenthesis: Information can be passed into functions as arguments.

Dec 27, 2024 · The Python `def` keyword is used to define user-defined functions, enabling code reusability and organization by allowing the creation of logical units of code.

def greet(): print('Hello World!') Here are the different parts of the program: Here, we have created a simple function named greet() that prints Hello World! Note: When writing a function, pay attention to indentation, which are the spaces at the start of a code line.

Dec 16, 2024 · Defining and calling functions in Python enhances code readability and reusability, with functions created using the 'def' keyword and called by their name followed by parentheses.

Jul 20, 2022 · To define a function in Python, you type the def keyword first, then the function name and parentheses. To tell Python the function is a block of code, you specify a colon in front of the function name.

Apr 15, 2021 · We start with the def keyword to inform Python that a new function is being defined. Then, we give our function a meaningful name . Next, in parentheses, we list the arguments or parameters that the function needs to perform a task.

Oct 31, 2023 · Learn how to create and use a Python function with Python's def keyword, why functions are useful, and learn about variable scope.

Aug 19, 2023 · In Python, functions are defined using def statements, with parameters enclosed in parentheses (), and return values are indicated by the return statement. Note that blocks are expressed with indentation (usually four spaces) rather than brackets. To call a defined function, use the following syntax: function_name(argument1, argument2...) Example:

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 simplest structure of a function. A function has two main parts: a function definition and body.

Defines a function, which is a reusable block of code that may accept data input, perform a specific computation or task, and return a result or produce a side effect.