[issue25177] OverflowError in statistics.mean when summing large floats

[Bar Harel]

Bar Harel added the comment:

Seems like this is the only viable option. It fixes the OverflowError but comes at the cost of precision and time.
Another option would be to try/except the overflow error and only then return the slower method.
Regarding the data [8.988465674311579e+307, 8.98846567431158e+307], float has lesser precision than other types like Decimal so the patched method would return 8.98846567431158e+307.
A dataset to test the fix is [8.99e+307, 8.989e+307] which gives a correct result.

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keywords: +patch
Added file: http://bugs.python.org/file40519/issue25177.patch

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