[docs] [issue33039] int() and math.trunc don't accept objects that only define __index__

[Rémi Lapeyre]

Rémi Lapeyre <remi.lapeyre at henki.fr> added the comment:

Yes it is. Thanks for finding that @Serhiy.

Since nobody objected to the change on the mailing list and people seem to agree in issue 20092:

    [R. David Murray]
    To summarize for anyone like me who didn't follow that issue: __index__ means the object can be losslessly converted to an int (is a true int), while __int__ may be an approximate conversion.  Thus it makes sense for an object to have an __int__ but not __index__, but vice-versa does not make sense.


I will post my patch tonight.

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue33039>
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