That's a subclass. Also:
>>> class A(list): __slots__ = ()
...
>>>
>>> a = A()
>>> a.foo = 'bar'
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'A' object has no attribute 'foo'
-Mike
On 2017-07-28 01:06, Antoine Rozo wrote:
> If an object has no slots or dict and does not accept attribute assignment,
is it not effectively immutable?
No, not necessarily.
class A(list): __slots__ = ()
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