What is Function in Python?

What is Function in Python?

A Function in python is a block of code that is run whenever called in your code.

You can pass The data which is called as parameter

There are Two Types of function

User Define Function : that is define by user
Built-In Function : Built-in function created by default like print(),input() etc

1) User Define Function

User Define Function in python ,that is created by user for run specific task , that is Executed whenever you called in your code

User Define Function is created using " def " Keyword

Example

# create a Funcction

def MyFun() :

print("Hello Everyone")

# call a function

MyFun()

Output

Hello Everyone

User define function with parameters

Example

# create a Funcction

def MyFun(name) :

print("Hello ", name)

# call a function

MyFun("Jack")

MyFun("John")

Output

Hello Jack

Hello John

2) Built-In Function

Built-In Function in python , a Function that is by default available in python programming language

There are many built-in Function Python , like print(),len(),input() etc

Example

# here how we are create built in len() function and example

# len() function is used for Return the length

lst = ["dog","lion","tiger"]

x = len(lst)

Output

Advantages