Vedran Čačić added the comment:
I think I have written about all the options in detail in
http://bugs.python.org/msg272732. If I see it right, your ".0" corresponds to
what I called ".__NONE__". It is a "right way" to do it, but for it to be
complete, you also have to add ".__ALL__", representing -1, as its complement.
If you do both of these, I'm fine with it, and we can discuss further
problems... :-)
... like inverting representation. If you have non-powers of 2 named, how do
you know which exact flags a value consists of?
class Weird(Flags):
AB = 3
C = 4
BC = 6
A = 1
what is Weird(7)? Weird.(AB|C) or Weird.(A|BC)? What if you don't have C (or A)
as a name? Are you going to employ a minimal exact cover algorithm? :-O
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<http://bugs.python.org/issue23591>
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