[3.6] bpo-32837: IDLE - require encoding argument for textview.view_file. (GH-5646)#5648

miss-islington merged 1 commit intopython:3.6python/cpython:3.6from

miss-islington:backport-688722c-3.6miss-islington/cpython:backport-688722c-3.6Copy head branch name to clipboard