bfredl
plugin not working with python 3 kernel - problem with jupyter-client and channels
Hello everyone!
I hope someone can help because this is a strange error and so far I could not find a fix or fix it myself.
Basically just suddently (after a manjaro update; maybe related to python 3.10 ?) my setup of nvim-ipy is not working anymore. I juse this plugin (and the very same vim-config) since years without any problems.
On Monday, the plugin start (opening the jupyter-console) looked strange and on executing lines I got the message:
jupyter_client not installed
After trying out a lot, getting different errors (all with the same respect), I suspect the problem is somewhere in the "linking/connection" to a channel.
What I did so far:
- PlugUpdate
- UpdateRemotePlugins
- checkhealth
- downgrading juypter_client, ipython, ipykernel etc..
- purging all relevant packages/software on my system
- reinstalling
- minimizing vim-config to only nvim-ipy
Nothing worked. I would be super happy, if anyone could give me a hint or has a solution or idea what to do!!
Error on executing line:
Error detected while processing function IPyRun[1]..remote#define#notify:
line 6:
E475: Invalid argument: Channel doesn't exist
My setup right now:
kernel: 5.4.169-1-MANJARO jupyter 1.0.0 jupyter_client 7.1.0 ipython 7.31.0 ipykernel 6.6.1
(should all be newest)
I have the very same problem on another laptop running a more recent manjaro kernel (but with same python package versions).
output of :checkhealth
coc: health#coc#check
========================================================================
- OK: Environment check passed
- OK: Javascript bundle build/index.js found
- OK: Service started
esearch: health#esearch#check
========================================================================
- WARNING: Can't find a fast search util executable.
- ADVICE:
- Install one of rg, ag, pt or ack.
- OK: Lua interface is available.
- OK: Asynchronous processing is available.
- OK: Floating preview feature is available.
- OK: Virtual text annotations are available.
- OK: Unicode icons are available.
floaterm: health#floaterm#check
========================================================================
## common
- INFO: Platform: linux
- INFO: Nvim: NVIM v0.6.0
- INFO: Plugin: 399cb86
## terminal
- OK: Terminal emulator is available
## floating
- OK: Floating window is available
nvim: health#nvim#check
========================================================================
## Configuration
- OK: no issues found
## Performance
- OK: Build type: Release
## Remote Plugins
- OK: Up to date
## terminal
- INFO: key_backspace (kbs) terminfo entry: key_backspace=^H
- INFO: key_dc (kdch1) terminfo entry: key_dc=\E[3~
- INFO: $COLORTERM='truecolor'
provider: health#provider#check
========================================================================
## Clipboard (optional)
- OK: Clipboard tool found: xclip
## Python 2 provider (optional)
- WARNING: No Python executable found that can `import neovim`. Using the first available executable for diagnostics.
- ERROR: Python provider error:
- ADVICE:
- provider/pythonx: Could not load Python 2:
/usr/bin/python2 does not have the "neovim" module. :help |provider-python|
/usr/bin/python2.7 does not have the "neovim" module. :help |provider-python|
python2.6 not found in search path or not executable.
/usr/bin/python is Python 3.10 and cannot provide Python 2.
- INFO: Executable: Not found
## Python 3 provider (optional)
- INFO: Using: g:python3_host_prog = "/usr/bin/python"
- INFO: Executable: /usr/bin/python
- INFO: Python version: 3.10.1
- INFO: pynvim version: 0.4.3
- OK: Latest pynvim is installed.
## Python virtualenv
- OK: no $VIRTUAL_ENV
## Ruby provider (optional)
- INFO: Ruby: ruby 3.0.3p157 (2021-11-24 revision 3fb7d2cadc) [x86_64-linux]
- WARNING: `neovim-ruby-host` not found.
- ADVICE:
- Run `gem install neovim` to ensure the neovim RubyGem is installed.
- Run `gem environment` to ensure the gem bin directory is in $PATH.
- If you are using rvm/rbenv/chruby, try "rehashing".
- See :help |g:ruby_host_prog| for non-standard gem installations.
## Node.js provider (optional)
- INFO: Node.js: v14.18.2
- INFO: Nvim node.js host: /usr/lib/node_modules/neovim/bin/cli.js
- WARNING: Package "neovim" is out-of-date. Installed: 4.10.0, latest: 4.10.1
- ADVICE:
- Run in shell: npm install -g neovim
- Run in shell (if you use yarn): yarn global add neovim
## Perl provider (optional)
- ERROR: perl provider error:
- ADVICE:
- "Neovim::Ext" cpan module is not installed
vim.lsp: require("vim.lsp.health").check()
========================================================================
- INFO: LSP log level : WARN
- INFO: Log path: /home/mreich/.cache/nvim/lsp.log
- INFO: Log size: 136 KB
vim.treesitter: require("vim.treesitter.health").check()
========================================================================
- INFO: Runtime ABI version : 13
vimtex: health#vimtex#check
========================================================================
## VimTeX
- OK: Vim version should have full support!
- OK: General viewer should work properly!
- OK: Compiler should work!
Please help!!
marcianito
It's an issue of recent jupyter_client, it uses asyncio in a way which is incompatible with pynvim's own usage. For now I just downgrade jupyter_client (to 6.1.0, though probably some later version also works). Eventually the entire thing should be rewritten in lua and not depend on pynvim at all. https://github.com/bfredl/nvim-lanterna
Ok, thanks @bfredl. Maybe not the most elegant way but it works for now. I guess I did not downgrade "deep enough" ;)
Thanks for the fix!