নীচের কোডটি A এবং B ক্লাসে 'foo' বৈশিষ্ট্যটি সংজ্ঞায়িত বা উদ্ভূত হয়েছে কিনা তা দেখায়।
উদাহরণ
class A: foo = 1 class B(A): pass print A.__dict__ #We see that the attribute foo is there in __dict__ of class A. So foo is defined in class A. print hasattr(A, 'foo') #We see that class A has the attribute but it is defined. print B.__dict__ #We see that the attribute foo is not there in __dict__ of class B. So foo is not defined in class B print hasattr(B, 'foo') #We see that class B has the attribute but it is derived
আউটপুট
{'__module__': '__main__', 'foo': 1, '__doc__': None} True {'__module__': '__main__', '__doc__': None} True