Deoplete is the abbreviation of "dark powered neo-completion". It provides an asynchronous keyword completion system in the current buffer. Deoplete cannot be customized and doesn't currently have many features. It is provided for testing purposes.
Note: It is still an alpha version! It is not for production use.
Note: deoplete requires Neovim(latest is recommended) with Python3 enabled. See requirements if you aren't sure whether you have this.
- Extract the files and put them in your Neovim directory
(usually 
~/.nvim/). - Execute the 
:UpdateRemotePluginsand restart Neovim. - Execute the 
:DeopleteEnablecommand or setlet g:deoplete#enable_at_startup = 1in your.nvimrc 
deoplete requires Neovim with if_python3.
If :echo has("python3") returns 1, then you're done; otherwise, see below.
You can enable Python3 interface with pip:
sudo pip3 install neovim
If you want to read the Neovim-python/python3 interface install documentation,
you should read :help nvim-python.
Nothing...
" Use deoplete.
let g:deoplete#enable_at_startup = 1