Am 01.05.2013 20:44, schrieb Antoine Pitrou:
On Wed, 01 May 2013 10:21:30 -0700 Ethan Furman
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. Georg