While doing a review of http://bugs.python.org/review/26129/ I asked to have curly braces put around all `if` statement bodies. Serhiy pointed out that PEP 7 says curly braces are optional: https://www.python.org/dev/peps/pep-0007/#id5. I would like to change that.My argument is to require them to prevent bugs like the one Apple made with OpenSSL about two years ago: https://www.imperialviolet.org/2014/02/22/applebug.html. Skipping the curly braces is purely an aesthetic thing while leaving them out can lead to actual bugs.Anyone object if I update PEP 7 to remove the optionality of curly braces in PEP 7?