list for existing guides; re-arranging ([diff](https://trac.torproject.org/projects/tor/wiki/org/teams/MetricsTeam/MetricsPythonStyleGuide%20?action=diff&version=2)) URL: https://trac.torproject.org/projects/tor/wiki/org/teams/MetricsTeam/MetricsPythonStyleGuide%20?version=2