[3.7] bpo-32837: IDLE - require encoding argument for textview.view_file. (GH-5646)#5647

miss-islington merged 1 commit intopython:3.7python/cpython:3.7from

miss-islington:backport-688722c-3.7miss-islington/cpython:backport-688722c-3.7Copy head branch name to clipboard