[docs] [issue19040] Problems with overriding Enum.__new__

Ethan Furman report at bugs.python.org
Mon Sep 23 06:04:07 CEST 2013

Ethan Furman added the comment:

Yup, just trying to add some explanation on how it currently works.

Drekin, I'm sure you've already figured this out, but for those who may read this in the future:  what you need is a helper function:

def OptionalEnum(value):
    "could also be OptionalEnum(enum, value)"
        return SomeEnum(value) # or return enum(value)
    except ValueError:
        return value


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