'NoneType' object has no attribute 'update_document' python3 with pyls

I'm getting errors trying to use Python3 with pyls in oni. Here's the config, and attached is the log.

const activate = (oni) => {
    console.log("config activated")
}

const deactivate = () => {
    console.log("config deactivated")
}

module.exports = {
    activate,
    deactivate,
   "oni.loadInitVim": true,
   "neovim.global.python_host_prog": "/usr/local/bin/python3"
}

-1510161973761.log