I *think* he's referring to something like this:
class A(enum.Enum):
class Inner(NamedTuple):
...
isinstance(A.Inner(), A()) # True
I *think* that's it.
On June 27, 2018 2:26:23 PM Ethan Furman <et...@stoneleaf.us> wrote:
On 06/27/2018 12:04 PM, Elazar wrote:
> בתאריך יום ד׳, 27 ביוני 2018, 11:59, מאת Guido van Rossum:
>> Sounds to me really strange that the nested class would become a member.
>> Probably because everything becomes a member unless it's a function
>> (maybe decorated)?
>
People working with sum types might expect the instances of the nested
> class to be instances of the enclosing class. So if the nested class is
> a namedtuple, you get a sum type. The only problem is that there's no
> way to express this subtype relationship in code.
I have no idea what you just said. :( Is there a link you can share that
might explain it?
--
~Ethan~
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