my_none = None

print(my_none)

print(type(my_none)) #вывод типа переменной my_none

if my_none is None:
    print('The database could not connect')
else:
    print('The database could connect')

class MyClass:
    def __eq__(self, my_object):
        # Просто вернем True

        return True

my_class = MyClass()

if my_class is None:
    print('my_class is None, using the is keyword')
else:
    print('my_class is not None, using the is keyword')

if my_class == None:
    print('my_class is None, using the == syntax')
else:
    print('my_class is not None, using the == syntax')