On Mon, Jan 26, 2015 at 9:30 PM, Chris Angelico <rosuav@gmail.com> wrote:

I would suggest that, as PEP author, you guide the conversation a bit
by asking specific questions that you want to answer in the PEP.

I thought I did that, actually, in that email -- I guess I wasn't very clear.

Here they are -- and please express not just your preference, but a clear statement about what would be acceptable or not acceptable.

A) Which test do we use:

1) The asymmetric test

2) The "strong" test (minimum relative tolerance)

3) The "weak" test (maximum relative tolerance)

B) Do we provide a non-zero default for the absolute tolerance? If so what should the value be? Remember that this serves primarily to provide a check against zero.

I think that's it for the technical decisions.

I would also appreciate suggestions for paramater names --at least if we go with the asymetric test: "actual" and "expected" is a bit confusing -- I like "expected", but we need something better than "actual" for the don't-know-it's-right one.

I also would really appreciate someone working out the details and contributing text for the inclusion of this in unittest.TestCase -- unittest is really not my thing.

I've pushed some changes to gitHub (sorry, forgot to push yesterday), and once the dust settles I'll incorporate as many of the suggestions in the PEP text as I can.

-Chris

Christopher Barker, Ph.D.
Oceanographer

Emergency Response Division
NOAA/NOS/OR&R (206) 526-6959   voice
7600 Sand Point Way NE   (206) 526-6329   fax
Seattle, WA 98115   (206) 526-6317   main reception

Chris.Barker@noaa.gov