Explain Functions in Python

Problem:Explain the concept of functions in Python. Describe how to define and call functions, pass arguments, and return values. Provide examples to illustrate the usage of functions in Python programming.

Solution: Functions in Python: A function in Python is a reusable block of code that performs a specific task or set of tasks. Functions allow you to organize and modularize your code, making it more readable, maintainable, and reusable. In Python, functions are defined using the def keyword, followed by the function name, a parameter list (if a ny), and a colon.

Defining a Function:

def function_name (parameters) :
    # Function body : code to be executed
    # •••
    # (optional) return statement
    return result

function_name: The name of the function.

parameters: A list of input parameters (arguments) that the function can accept (optional).

return result: An optional return statement that specifies the value to be returned from the function. If omitted, the function returns None by default.

Calling a Function:

To execute a function, you need to call it by its name, passing the required arguments if any. Function calls can be used in expressions or statements.

def function_name (parameters) :
    # Function body : code to be executed
    # •••
    # (optional) return statement
    return result

#calling function
function_name(arguments)

Functions are a fundamental building block of Python programming. They allow you to encapsulate and reuse code, making your programs more organized and efficient. Functions can take parameters, return values, and have docstrings to provide documentation. Proper use of functions enhances code readability and maintainability.

Explain Functions in Python