So what I will do is try to convince the managers of python-dev to put it under the CoC and get the CoC mentioned in the footer of
bugs.python.org. I will update the devguide to say that the various mailing lists and issue tracker are under the CoC so people are aware, but I won't go as far as I was originally proposing about covering all public, Python-related interactions. Once we move to GitHub we will most likely have a CONTRIBUTING file that links to the devguide and that file will mention that interactions involving the repo are under the CoC (or some other wording that says pull requests fall under the Code of Conduct).