commit 952ea67289ffbd2f4785a9e537884a63d1208101
author Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Tue Sep 03 14:18:45 2019 -0700
committer GitHub <noreply@github.com> Tue Sep 03 14:18:45 2019 -0700
tree cedccfc097e00ff5ac8a3ff5977c716bbf4b7733
parent 54dac6c0f4fa24d03025c45899ee7c5f2a4c367e

bpo-38022: IDLE: upgrade help.html to sphinx 2.x HTML5 output (GH-15664)


The HTML5 output from Sphinx 2.x adds  '<p>' tags within list elements.  Using a new prevtag attribute, ignore these instead of emitting unwanted '\n\n'.

Also stop looking for 'first' classes on tags (no longer present) and fix the bug of double-spacing instead of single spacing after <pre> blocks.
(cherry picked from commit 580bdb0ece681537eadb360f0c796123ead7a559)

Co-authored-by: Tal Einat <taleinat+github@gmail.com>