Document and use safe subclassing.
commitabb1e49e6258c16ea052a14c1b3a3950b48cffe7
authormilde <milde@929543f6-e4f2-0310-98a6-ba3bd3dd1d04>
Wed, 1 Mar 2017 10:57:46 +0000 (1 10:57 +0000)
committermilde <milde@929543f6-e4f2-0310-98a6-ba3bd3dd1d04>
Wed, 1 Mar 2017 10:57:46 +0000 (1 10:57 +0000)
treea5b31a7de88d5bea20edec55abec7223e2116055
parent5160d95bbf0a91a5828cb74538621146d56e8a8a
Document and use safe subclassing.

git-svn-id: http://svn.code.sf.net/p/docutils/code/trunk@8040 929543f6-e4f2-0310-98a6-ba3bd3dd1d04
docutils/docutils/writers/html5_polyglot/__init__.py