[issue39576] Surprising MemoryError in `decimal` with MAX_PREC

[Vedran Čačić]

Vedran Čačić <vedgar at gmail.com> added the comment:

Hm... is "exact result" a technical term that's defined somewhere? Because to me it seems that this

> "If there exists an exact result at a lower precision, this
result should also be returned at MAX_PREC (without MemoryError)".

is a mathematical statement, and surely for Decimal('0.07776') ** Decimal('0.2') _there exists_ an exact result at a lower precision. Maybe this should be reworded as "If there exists ... _and an implementation knows about it_, it should also be returned ..."

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue39576>
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