GCD in Fractions

[blindanagram]

On 23/09/2014 18:26, Stefan Behnel wrote:
> Wolfgang Maier schrieb am 23.09.2014 um 18:38:
>> While at first I thought this to be a rather irrelevant debate over module
>> private vs public naming conventions, I now think the OP is probably right
>> and renaming fractions.gcd to fractions._gcd may be a good idea.
> For negative numbers, the "expected" behaviour seems to be unclear, so the
> current behaviour is just as good as any, so backwards compatibility
> concerns clearly win this fight.

The expected behaviour is not unclear for anyone who takes the
mathematical properties of the GCD seriously.  It's a shame that Python
doesn't.