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Tue Mar 20 20:32:11 EDT 2018 · https://mail.python.org/pipermail/python-dev/2018-March/152400.html

It seems .as_integer_ratio() has been resolved.

what about the original .is_integer() request? (Or did I miss that somehow?)

Anyway, it seems like __index__() should play a role here somehow... isn't
that how you ask an object for the integer version of itself?

Could float et al. add an __index__ method that would return a ValueError
if the value was not an integer?

Of course, as pointed out earlier in this thread, an "exact" integer is
probably not what you want with a float anyway....

-CHB

On Tue, Mar 13, 2018 at 10:29 PM, Tim Peters <tim.peters at gmail.com> wrote:

> [Tim]
> >> An obvious way to extend it is for Fraction() to look for a special
> >> method too, say "_as_integer_ratio()".
>
> [Greg Ewing]
> > Why not __as_integer_ratio__?
>
> Because. at this point, that would be beating a dead horse ;-)
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[Python-Dev] Symmetry arguments for API expansion