Functions in Python

 Functions in Python

Functions are blocks of code that can be called repeatedly in a program. Here's an example:

python

def greet(name):

    print("Hello, " + name)

greet("John")

In this example, greet() is a function that takes a name parameter and prints a greeting. We call the function and pass it the name "John", so it prints "Hello, John".

We can also use functions to return a value:

python

def add_numbers(x, y):

    return x + y

result = add_numbers(5, 3)

print(result)

In this example, add_numbers() is a function that takes two parameters and returns their sum. We call the function with the numbers 5 and 3, and store the result in the result variable. We then print the value of result, which is 8.