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.

Suppose we need to create a program to make a circle and color it. We can create two functions to solve this problem: Dividing a complex problem into smaller chunks makes our program easy to understand and reuse. Let's create our first function. def greet(): print('Hello World!') Here are the different parts of the program:

Mar 10, 2025 · Python Functions is a block of statements that return the specific task. The idea is to put some commonly or repeatedly done tasks together and make a function so that instead of writing the same code again and again for different inputs, we can do the function calls to reuse code contained in it over and over again.

In this post, I have compiled a list of examples of functions in Python. Check out these examples and understand how functions work in various scenarios. I hope this will help you get a clear picture of Python functions.

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 ...

In this example we have two functions: f (x,y) and print (). The function f (x,y) passed its output to the print function using the return keyword. Functions can return variables. Sometimes a function makes a calculation or has some output, this can be given to the program with a return varaible.

Oct 29, 2023 · Subroutines are blocks of code in Python designed to perform specific tasks. They are categorized into two main types: functions and methods. Functions: Functions are independent, reusable...

Often called a procedure, a function, or a subroutine, a subprogram is a division of code that is separated from the rest. A subprogram is a way of organising code to perform one particular function. For instance, (in an abstract example), a subprogram could be used to turn on a light bulb or to turn off a plug socket.

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.

For example, if you think of one of your favourite songs it is likely to have several verses and a repeating chorus. A subroutine could be used to define what the chorus is, so we could now replace the lines of the actual chorus with just chorus.