class student:

def __init__(self):

self.name="manoj"

self.age=22

self.marks=100

self.location="bhilwara"

def study(self):

print("student is studying ")

s1=student()

print(s1) # printing address of object

print(s1.name)

print(s1.age) # accessing data through object

print(s1.marks)

s1.study() # calling method

s2=s1 # copying object to another object

print(s1) # printing both objects address ( both are same)

print(s2)

s3=s1 #creating one more address variable of same object

s4=student() # creating one more object ( returned address is stored in s4)

print(s1)

print(s2) # s1,s2,s3 have same address

print(s3)

print(s4) # s4 has different address

s1.name="eukst" # name changed by s1 address variable

print(s1.name)

print(s2.name) # all adrress variale pointing to same address so, change will happend to other variable also

print(s3.name)

print(s4.name) # s4 doesnot change , because it points to other object