Singleton class

Question

As i have created a example of singleton. Wanna ask if it is correct ?

class Singleton:
__instance=None
def __init__(self):
if Singleton.__instance!=None:
raise Exception("This class is Singleton")
else:
Singleton.__instance=self
obj=Singleton() #instance created

obj1=Singleton() #exception error "This class is Singleton"

Answer 1

I think it works. And depending on requirement, we can return the instance instead of raising an exception.

Answer 2

thanx buddy