Question

I have this code for testing the data descriptors

class DataDescriptor(object):
    def __init__(self):
        self.value = 1990

    def __get__(self,obj,cls):
        print "__get__ in Data descriptor"
        return self.value

    def __set__(self,obj,value):
        self.obj = value
        print "__set__ in Non Data Descriptor"

    def __del__(self,obj):
        print "__del__ in Non Data Descriptor"
        del self.obj

class NonDataDescriptor(object):
    def __get__(self,obj,cls):
        print "__get__ in Non Data descriptor"


class C(object):
    dd = DataDescriptor()
    ndd =NonDataDescriptor()
    def __init__(self):
        self.__value = 1

cobj = C()
cobj.dd 

When i execute that , then i ca only see the print statement but i can’t see the actual value i am retirung in my get function

My output is this only

__get__ in Data descriptor

Answer 1

You didn’t print the return value. So, you didn’t see it.

You need to do: –

print cobj.dd