[issue45918] Possibly use ROUND_05UP in decimal's localcontext() example

[Tim Peters]

Tim Peters <tim at python.org> added the comment:

Not a good idea in general - this rounding mode is _mostly_ "to zero", and isn't intended for chains of operations. I don't believe I've ever seen it used in a real program, so the current "no example at all" is a fair representation of real usage ;-)

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue45918>
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