Hello, In ticket 12988, Julian Rueth fixed rings so .characteristic returns a Sage Integer, and not a Python int. The patch looks good to me, but I'm not familiar enough with the categories framework and the testing framework to feel like I can give a full positive review.
All doctests pass, and all rings I tried returned an Integer characteristic, so a quick review should suffice. We are at 97 positively-reviewed tickets here at SD 40.5, and I'm hoping we can break 100. Thanks! Dan -- --- Dan Drake ----- http://mathsci.kaist.ac.kr/~drake -------
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