[resending to lists -- sorry, Greg]
On 01/15/2016 12:36 PM, Greg Ewing wrote:
Ethan Furman wrote:
So the question now is: for a standard Enum (meaning no other type
besides Enum is involved) should __bool__ look to the value of the
Enum member to determine True/False, or should we always be True by
default and make the Enum creator add their own __bool__ if they want
something different?
Can't you just specify a starting value of 0 if you
want the enum to have a false value? That doesn't
seem too onerous to me.
You can start with zero, but unless the Enum is mixed with a numeric
type it will evaluate to True.
Also, but there are other falsey values that a pure Enum member could
have: False, None, '', etc., to name a few.
However, as Barry said, writing your own is a whopping two lines of code:
def __bool__(self):
return bool(self._value_)
With Barry and Guido's feedback this issue is closed.
Thanks everyone!
--
~Ethan~
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