Bundles PyCharm Web help and serves it via built-in Web server for offline use.
Recent change notes
Content update for 2018.3 release
General usage instructions
Plugin adds offline help feature to PyCharm (all editions except EDU, for which there will be a dedicated plugin a little later). After installation it will open requested help pages in your default browser, and will serve them via IntelliJ built-in Web server from 127.0.0.1