This is on point. I'm also going to throw another reference to PEP-20 in the mix here: "There should be one-- and preferably only one --obvious way to do it."

This is on point. I'm also going to throw another reference to PEP-20 in the mix here: "There should be one-- and preferably only one --obvious way to do it." This implies either forcing parens everywhere or not using them at all. Paired with "explicit is better than implicit", I'd say that points pretty clearly at using parens everywhere.