Python program for Accessing Class Variable Using Object

Python Lab Manual / Python program for Accessing Class Variable Using Object

Program Name

Write a Python program for Accessing Class Variable Using Class Object.

Theory

Python program for Accessing Class Variable is done Using class Object.

Program Code


class CompanyName: 
# init method or constructor 
def __init__(self, name): 
	self.name = name 

def say_hi(self): 
	print('Hi ', self.name) 

cnobj = CompanyName('wisdom materials') 
cnobj.say_hi()

Input and Output:
Hi  wisdom materials

Program Name

Write a Python program for Accessing Class Variable Using Class Object.

Theory

Python program for Accessing Hidden Class Variables is done Using class Object.

Program Code


class MyClass: 
	__hiddenVariable = 10
 
myObject = MyClass()	 
print(myObject._MyClass__hiddenVariable)

Input and Output:
Output:
10

Program Name

Write a Python program for demonstrate working of object.

Theory

Python program for demonstrate working of object.

Program Code


#declaring the object of class object 
obj = object() 

print ("Printing its type of object class object is : \n", type(obj)) 
print ("\nPrinting its attributes of a class : \n", dir(obj))

Input and Output:
Printing its type of object class object is : 
 

Printing its attributes of a class : 
 ['__class__', '__delattr__', '__dir__', '__doc__', '__eq__', '__format__',
'__ge__', '__getattribute__', '__gt__', '__hash__', '__init__', '__init_subclass__',
'__le__', '__lt__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__',
'__setattr__', '__sizeof__', '__str__', '__subclasshook__']

Program Name

Write a Python program for checking for object equality .

Theory

Python program for checking for object equality .

Program Code


obj1 = object() 
obj2 = object() 

# checking for object equality 
print ("Is obj1 equal to obj2 : ", str(obj1 == obj2))

Input and Output:
Output:
Is obj1 equal to obj2 :  False

Program Name

Write a Python program for checking for object equality .

Theory

Python program for accessing attributes using objects of class .

Program Code


class abcd():
	def __init__(self):
		self.attribute1 = "123456789"

	def newAttr(self, attr):
		setattr(self, attr, attr)

abcdobj = abcd()
print(abcdobj.attribute1) 


#setattr(objectClass, "newAttribute", "new attr")
#print(objectClass.newAttribute)

Input and Output:
Output:
123456789

Program Name

Write a Python program for checking for object equality .

Theory

Python program for accessing attributes using objects of class .

Program Code


outVar = 'Out/Global varible'	
print("Outside-varible", outVar) 

class c1: 
 print("class1-Outside-varible", outVar) 
 def am1(self):
     print("class1 - Method1 - Out varible:", outVar) 

# Calling method using object 
uac = c1() 
uac.am1()

Input:

Input and Output:
Output:
Outside-varible Out/Global varible
class1-Outside-varible Out/Global varible
class1 - Method1 - Out varible: Out/Global varible

Program Name

Write a Python program for accessing instance variable using objects of class.

Theory

Python program for accessing instance variable using objects of class .

Program Code


class employee:
 def __init__(self):
  self.eno=100
  self.ename='jhon'
  self.salary=10000
e= employee()
print(e.eno)
print(e.ename)
print(e.salary)
print(e.__dict__)

Input:

Input and Output:
Output:
100
jhon
10000
{'eno': 100, 'ename': 'jhon', 'salary': 10000}

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