big +1 for pylint - saved my butt more times than I can count. Subtly, pylint makes it easy to migrate teams to new APIs, e.g. by disallow rules. -1 to whitel

big +1 for pylint - saved my butt more times than I can count. Subtly, pylint makes it easy to migrate teams to new APIs, e.g. by disallow rules. -1 to whitelisting - I just devote ~1 day to going through the 1000s of warnings, not a big deal.