Object-oriented programming in python

what is Object-oriented programming?

class Person():

def __init__(self, fname,lname):

self.fname=fname

self.lname=lname

def write(self):

print("name is ")

print(self.fname+" "+self.lname)

fname=input("enter first name \n")

lname=input("last name\n")

obj=Person(fname,lname)

obj.write()