[Python-Dev] Re: PEP 285: Adding a bool type
Mark McEahern
marklists at mceahern.com
Wed Apr 3 10:55:48 EST 2002
[me]
> This is Python with the PEP:
>
> falseValues = [{}, [], 0, None, False]
> for x in falseValues:
> if not x:
> print "%s is 'false'." % x
[Fredrik Lundh]
> can you explain how your second example covers
> everything that's in the PEP?
It doesn't cover everything in the PEP.
Here's how I think of the PEP:
With this PEP, we get to have our cake and eat it too:
1. There is one obviously correct way to return a truth value.
2. Polymorphous perversity with respect to truth still works.
What's everybody complaining about?
Cheers,
// mark
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