[Python-Dev] PEP 409 - final?

[Eric V. Smith]

On 2/1/2012 7:49 PM, Nick Coghlan wrote:
> On Thu, Feb 2, 2012 at 10:44 AM, Tim Delaney
> <timothy.c.delaney at gmail.com> wrote:
>>> 3) Should it be an exception, or just inherit from object?
>>>   Is it worth worrying about somebody trying to raise it, or
>>>   raise from it?
>>
>> If it's not actually an exception, we get prevention of instantiation for
>> free. My feeling is just make it a singleton object.
> 
> Yeah, a new Ellipsis/None style singleton probably makes more sense
> than an exception instance.

But now we're adding a new singleton, unrelated to exceptions (other
than its name) because we don't want to use an existing singleton (False).

Maybe the name difference is good enough justification.

Eric.