On Apr 06, 2015, at 06:08 PM, Guido van Rossum wrote: >I've taken the liberty of adding the following old but good rule to PEP 8 >(I was surprised to find it wasn't already there since I've lived by this >for ages): > > Be consistent in return statements. Either all return statements in a > function should return an expression, or none of them should. If any return > statement returns an expression, any return statements where no value is > returned should explicitly state this as return None, and an explicit > return statement should be present at the end of the function (if > reachable).
+1 Odd synchronicity: Today I discovered an old interface that was documented as returning a "thing or None" but the latter was relying on implicit None return in some cases. Fixed of course in exactly the way PEP 8 now recommends. :) Cheers, -Barry _______________________________________________ Python-Dev mailing list [email protected] https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com