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.

Mar 10, 2025 · In Python, functions are first-class objects, allowing them to be assigned to variables, passed as arguments and returned from other functions. This enables higher-order functions, closures and dynamic behavior.

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. Arguments are specified after the function name, inside the parentheses. You can add as many arguments as you want, just separate them with a comma.

Jul 28, 2021 · In any programming language, functions facilitate code reusability. In simple terms, when you want to do something repeatedly, you can define that something as a function and call that function whenever you need to. In this tutorial, we shall learn about user-defined functions in …

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 can take arguments and returns the value. Python has a DRY principle like other programming languages. DRY stands for Don’t Repeat Yourself.

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.

A function is a block of organized code that is used to perform a single task. They provide better modularity for your application and reuse-ability. A function can take arguments and return values: In the following example, the function say_hello receives the argument “name” and prints a …

Dec 17, 2022 · Mastering Python functions is essential for writing clean, modular, and efficient code. We’ve covered the basics, including function definition, parameters, return statements, variable scope, lambda functions, higher-order functions, and decorators.

Apr 12, 2025 · Python Functions are fundamental building blocks in programming, enabling code reusability, organization, and modularity. This comprehensive guide will teach you everything about Python functions, from basic definitions to advanced concepts.

Oct 31, 2023 · In this article, we’ll explore Python functions. You’ll learn why they are so important, how to define functions with Python’s def keyword, how to call functions, and we’ll learn about a topic that arises when using functions: variable scope. 1 What is a function in Python? What is a function in Python? Let’s define what a function is, exactly: