proposed language change to int/int==float (was: PEP0238 lament)
grante at visi.com
Thu Jul 26 23:44:51 CEST 2001
In article <cp3d7j75jv.fsf at cj20424-a.reston1.va.home.com>, Guido van Rossum wrote:
>> >>> 1+2
>> >>> 1.0+2.0
>> ... unless 3 and 3.0 are "the same value". In which case my
>> definition of that phrase is merely different than yours.
>Well, they have the same *mathemtical* value, and Python does its
>darndest to treat them as equal everywhere.
I've been thinking in assembly language too long. :) In my
mind, floats and ints are only distantly related.
>For example, a dict with int keys can be indexed with
>corresponding float or complex values.
That's interesting -- I didn't know that.
>Exceptions are operations that intrinsically require ints, e.g. list
>indexing. (This would change under a unified numeric system though, I
>expect, unless inexact numbers are excluded from being used as
If the numerical types all get unified, then I think one would
expect an inexact number to get "converted" to an exact one if
used in that context.
Grant Edwards grante Yow! I guess it was all a
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