(original) (raw)

Am 01.05.2013 20:44, schrieb Antoine Pitrou:

> On Wed, 01 May 2013 10:21:30 -0700
\> Ethan Furman <ethan@stoneleaf.us> wrote:
\>> We may not want to /completely/ disallow subclassing. �Consider:
\>>
\>> --> class StrEnum(str, Enum):
\>> ... � �'''string enums for Business Basic variable names'''
\>> ...
\>> --> class Vendors(StrEnum):
\>> EnumError: subclassing not allowed
\>
\> I don't see the point of disallowing subclassing. It sounds like
\> a pointless restriction.
\>
\> However, perhaps the constructor should forbid the returning of a base
\> type, e.g.:
\>
\> class Season(Enum):
\> � � spring = 1
\>
\> class MySeason(Season):
\> � � """I look nicer than Season"""
\>
\> MySeason('spring')
\> ...
\> ValueError: Season.spring is not a MySeason instance
\>
\> (what this means is perhaps the subclassing of non-empty enum classes
\> should be forbidden)

That's exactly what's implemented in the ref435 code at the moment.