How to tell NeoVim to use “python” instead of “python3”?

Question

Im using pyenv to administer my python versions (Im on Manjaro Linux) and the command for python on my system is python but nvim wants to use python3. How can I change it?

Error:

[coc.nvim] Error on execute python script: request error nvim_command - Vim(pyxf
ile):E319: No "python3" provider found. Run ":checkhealth provider"

Here is a prt of my init.vim file:

" coc config
let g:coc_global_extensions = [
  \ 'coc-snippets',
  \ 'coc-pairs',
  \ 'coc-tsserver',
  \ 'coc-eslint', 
  \ 'coc-prettier', 
  \ 'coc-json', 
  \ 'coc-sh',
  \ 'coc-clangd',
  \ 'coc-cmake',
  \ 'coc-jedi'
  \ ]

Answer 1

If nvim works like Vim on this topic, as a I see pyxfile in your error message, you should be able to force 'pyxversion' to 2 in your .vimrc (or equivalent with nvim)

set pyxversion=2

This may cause troubles with plugins that explicitly request :py3 commands as it would not longer be available once the first use of a :py or :pyx command has been issued.

Answer 2

Because my system does not name the default python interpreter as python3, but as python I simply added a shell alias:

alias python3='python'

Answer 3

i solved mine by doing this python -m pip --user --upgrade pynvim. PyNvim is a provider for python in NVIM

and later in the config file at ~/.config/nvim/init.vim add this line saying which python to use let g:python3_host_prog = '/usr/bin/python'

Answer 4

I solved that issue by installing pynvim package for all Python 3 releases that was described in: :checkhealth provider

In my system, I have python3.10 and python3.9, so I run:

python3.10 -m pip install --user pynvim
python3.9 -m pip install --user pynvim