[issue21227] Decimal class error messages for integer division aren't good

[Stefan Krah]

Stefan Krah added the comment:

It is hard to get fine grained error messages in _decimal, since
the errors come from libmpdec.  A clean solution would require
changes to libmpdec, and I'm reluctant to do that right now.

It is certainly possible to document DivisionImpossible etc.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue21227>
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