Python Call Function

Once a function is created you can call it by writing function_name() itself or another function/ nested function. Use a def keyword to declare or write a function in Python.

def function_name():  
       Statement1

# directly call the function  
function_name() 

The “def ” statement followed by the function name and parentheses ( () )

Python Call Function

Simple example code.

def MyFun():
    print("Hello World")
    print("Call function")


MyFun()

Output:

Calling Nested Function in Python

Call the outer and the inner functions to execute the statement.

def OutFun():
    print("Call outer function")


def InFun():
    print("Call inner function")


InFun()
OutFun()

Output:

Call inner function
Call outer function

Write a program to call a function inside the class

class Student:
    Roll_no = 100
    name = "John"

    def show(self):
        print("Roll no: %d\nName of student is %s" % (self.Roll_no, self.name))


# object
s = Student()
s.show()

Output:

Do comment if you have any doubts or suggestions on this Python function topic.

Note: IDE: PyCharm 2021.3.3 (Community Edition)

Windows 10

Python 3.10.1

All Python Examples are in Python 3, so Maybe its different from python 2 or upgraded versions.