Functions in Python

A function is a block of code that does a specific task. Large programs are broken to functions to perform a particular task. Functions are executed when it is called with in a program. Functions take input data using arguments and returns a result. Now let us how to define functions and use in python

Functions in python are defined using the 'def' keyword followed by function name and arguments to the function and a colon to start a new block.

def functionName(arguments):

return [expression] is used to return a value from the function.

Python program uses indentation to start a new block. A indentation of 4 spaces is generally used to form the block of statements.

To break from a function use return with no expression, this breaks and exits from the function.

return with no expression returns 'None' , Capture the return of function into a variable and check.

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