[Python-Dev] Change in Python 3's "round" behavior

Greg Ewing greg.ewing at canterbury.ac.nz
Sun Sep 30 18:15:53 EDT 2018

Chris Angelico wrote:
> ]That
> means that any representable number actually has to indicate a range
> of values centered on that value.

That's not always true -- it depends on the source of the
information. For example, a reading of 5 seconds on a clock
with 1 second resolution actually represents a value between
5 and 6 seconds.

So if you're fussy about rounding, you might want to round
clock readings differently from measurements on a ruler.


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