Define Function in Paython

Define Function in Python

Function is block of codes. Python provide built-in and user define both types of function.

• Built-in function
• User defined function

Built-in function

This type of functions are pre-defined, you can directly use in your program. For example print function is used for display message on screen or console.

a="Hello World!"  
print a  

User defined function

This type of functions are defined by programmer. According to your requirement you can defined you function name and it's functionality. In python you can define any function by using def keyword.

def function_name(parameter)
function body

def power(x,n):
    result = x
    for i in range(1,n):
        result = result * x
    return result

Explanation

• a variable store hello world string
• print statement is used for display message on screen or console.