Thu, 11 Jul 2019 16:00:25 -0700 Martin von Zweigbergk py3: use "%d" for formatting integers
Fri, 12 Jul 2019 08:17:25 -0700 Martin von Zweigbergk py3: avoid "%s" for formatting None
Fri, 12 Jul 2019 08:16:30 -0700 Martin von Zweigbergk py3: use "%f" for formatting floating point number
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