Neovim deoplete use python3 as default

2
votes

I want to use deoplete with neovim using python3 as default.

I am trying to set up deoplete for neovim supported with deoplete-deji. I have installed both correctly, and it works as expected, but only for python 2. I have confirmed this by running sys.version_info which shows python2.

Things i have done so far are:

  • installed the plugins.
    • zchee/deoplete-jedi
    • Shougo/deoplete.nvim
  • installed neovim using pip and pip3

set the following deoplete configurations: 

let g:deoplete#enable_at_startup = 1
let g:deoplete#file#enable_buffer_path = 1
let g:deoplete#enable_smart_case = 1
let g:deoplete#enable_at_startup = 1
let g:deoplete#file#enable_buffer_path = 1
let g:deoplete#enable_smart_case = 1

When i used let g:loaded_python_provider = 1, everything works as expected, but when i change it to let g:loaded_python3_provider = 1, i am getting Vim(let):E117: Unknown function: provider#python3#Prog when running UpdateRemotePlugins

I am a bit opposed to creating an alias, because i want python to point to python2

Long story short, trying to make python3 default for everything in neovim including deoplete and jedi Thanks!

2
vimneovim

2 Answers

3
votes

After looking through the docs, deoplete jedi searches for python in PATH. Setting g:deoplete#sources#jedi#python_path = 'python3' is the solution.

0
votes

I have been facing this kind of problem, so, in the error messages I saw something related with gcc, then I started searching for the development packs for my linux distro (voidlinux). The solution came when I installed:

python3-pip python3-devel python-devel base-devel xclip neovim

And the neovim library to python3 and python3

sudo pip install neovim
sudo pip3 install neovim

All this was only possible due to the command:

:checkhealt

The deoplate plugin website has also a recommendation:

:UpdateRemotePlugins