[Python-Dev] ANN: Experimental Number Types (Integer, Rational, Floats)
Ben Wolfson
wolfson at uchicago.edu
Thu Apr 19 18:02:44 EDT 2001
In article <mailman.987712113.6506.python-list at python.org>, "M.-A.
Lemburg" <mal at lemburg.com> wrote:
> Michael Hudson wrote:
>>
>> Before I d/l and take a look...
>>
>> "M.-A. Lemburg" <mal at lemburg.com> writes:
>>
>> > (e.g. Integer(2) + "3" works as one would expect ;-).
>>
>> So it raises an exception? Seriously, that's what *I'd* expect, and if
>> it's not what your package does, I beg you to reconsider.
>
> Integer(2) + "3" gives you Integer(5). This is a side-effect of how the
> implementation converts arbitrary objects into ones usable for coercion:
> Integer(2) + "3" is interpreted as Integer(2) + Integer("3") which gives
> Integer(2) + Integer(3).
>
> After having played with it for a while, I must say, that I kind of like
> it :-)
Just like Steve Lamb (right? It was him, right?) wanted! At long last,
Python can just do the right thing! Even if it still seems like the
wrong thing.
--
Barnabas T. Rumjuggler
Thou hast been called, O Sleep! The friend of woe,
But 'tis the happy who have called thee so.
-- Robert Southey
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