What is Object and Types of Object

What is Object:

• The concept of allocating the memory space for class at the time of execution of the program is known as object

                                                            (OR)

• Instance of a class is known as a object

Types of Objects:-

Python supports two types of Objects. They are:

• Immutable Objects.

• Mutable Objects.

1).Immutable Objects

• The Objects which does not  allow to modify the content are known as Immutable Objects. 

• Whenever we try to modify the data of the Immutable Objects without modifying the data of those Objects new Objects will be created with the modified content.

Python immutable Objects are:

• int

• float

• complex

• bool

• str

• tuple

Example 1:                                                                          

x=10                                                    
print(x)
print(type(x))
print(id(x))

y=10
print(y)
print(type(y))
print(id(y))

Output:
10
<class 'int'>
1715414000

10
<class 'int'>
1715414000

Example 2:

a=10
print(a)
print(type(a))
print(id(a))

a=15
print(a)
print(type(a))

print(id(a))

Output:

10
<class 'int'>
1715414000

15
<class 'int'>

1715414160

Example 3:

str1="siva"
print(str1)
print(type(str1))
print(id(str1))

str2="siva"
print(str2)
print(type(str2))

print(id(str2))

Output:

siva
<class 'str'>
55428632

siva
<class 'str'>

55428632

Example 4:

str3="siva"
print(str3)
print(type(str3))
print(id(str3))

str3="krishna"
print(str3)
print(type(str3))

print(id(str3))

Output:

siva
<class 'str'>
55899784

krishna
<class 'str'>

55899896

Example 5:

tup1=(10,2.3,True,3+4j,'siva')

print(tup1)

print(id(tup1))

for p in tup1:

    print(p)

    print(id(p))

tup2=(10,2.3,True,3+4j,'siva')

print(tup2)

print(id(tup2))

for p in tup2:

    print(p)

    print(id(p))

Output:

(10, 2.3, True, (3+4j), 'siva')

48639584

10

1715414000

2.3

5810768

True

1715159456

(3+4j)

55239856

siva

55899784

(10, 2.3, True, (3+4j), 'siva')

55543504

10

1715414000

2.3

5810768

True

1715159456

(3+4j)

55241776

siva

55899784

Note:

• Before we are creating immutable object,Python interpreter checks already immutable object is created with the same content.

• If already immutable object is created  with the same content without creating the new-object, already existing object address will be given to the second reference variable.

• Two immutable objects creates with same content is not possible.

• Immutable Objects will give better performance when compared to mutable Objects. 

• We cannot create two different immutable Objects with the same content at any given point of time.

• Applying the iterations on immutable Objects will give better performance.

2).Mutable Objects :

• The Objects which we allows to modify the content are known as Mutable Objects.

Python mutable Objects are:

• list

• set

• dict

Example 1:

x=[10,20,30]

print(x)

print(type(x))

print(id(x))

y=[10,20,30]

print(y)

print(type(y))

print(id(y))

Output:

[10, 20, 30]

<class 'list'>

58409544

[10, 20, 30]

<class 'list'>

55184136

Example 2:

a=[10,20,30]

print(a)

print(type(a))

print(id(a))

a=[40,50,60]

print(a)

print(type(a))

print(id(a))

Output:

[10, 20, 30]

<class 'list'>

55106952

[40, 50, 60]

<class 'list'>

55099720

Note:

• We can create two different mutable Objects with the same content.

• Two different variables having same content but create different objects.