[Python-Dev] Re: PEP 285: Adding a bool type (original) (raw)

Mark McEahern marklists@mceahern.com
Wed, 3 Apr 2002 09:55:48 -0600

[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