python error

[minusf]

after installing the plugin with vim-plug i see the following error in .local/share/nvim/log

ERROR 2020-04-11T01:40:16.060 31408 call_set_error:623: RPC: ch 3 returned a response with an unknown request id. Ensure the client is properly synchronized

and inside nvim:

Error detected while processing function AutoTag[4]..provider#python3#Call:
line   18:
Error invoking 'python_execute' on channel 3:
Invalid channel: 3

this is on macos, latest nvim, latest pynvim.

:call AutoTagDebug()

also results in an empty window. checkhealth shows a working python3 (and other plugins use it successfully too).

after set verbose=20 and doing :w on a python source file (of which i want to generate tags):

Executing BufWritePost Autocommands for "*"
autocommand call AutoTag ()
line 0: call AutoTag ()
calling function AutoTag()
line 1:       if exists("b:netrw_method")
line 2:          return
line 3:       endif
line 4:       python3 autotag()
calling function AutoTag[4]..provider#python3#Call('execute', ['autotag()', 4, 4])
line 1:   if s:err != ''
line 2:     return
line 3:   endif
line 4:   if !exists('s:host')
line 5:     let s:rpcrequest = function('rpcrequest')
line 6:
line 7:     " Ensure that we can load the Python3 host before bootstrapping
line 8:     try
line 9:       let s:host = remote#host#Require('legacy-python3-provider')
line 10:     catch
line 11:       let s:err = v:exception
line 12:       echohl WarningMsg
line 13:       echomsg v:exception
line 14:       echohl None
line 15:       return
line 16:     endtry
line 17:   endif
line 18:   return call(s:rpcrequest, insert(insert(a:args, 'python_'.a:method), s:host))
Error detected while processing function AutoTag[4]..provider#python3#Call:
line   18:
Error invoking 'python_execute' on channel 3:
Invalid channel: 3
function AutoTag[4]..provider#python3#Call returning #-1
continuing in function AutoTag
line 5:       if exists(":TlistUpdate")

[minusf]

found this error message in a couple of places and it might be related to multiprocessing?

[craigemery]

multiprocessing is the heart of this code now. I've got a Mac on Mojave and MacVim & Python3 work fine for me. I'll try & install neovim & see what happens.

[craigemery]

It's not happening during a :wqa is it?

[minusf]

i see the error on every attempt to :w a buffer.

[craigemery]

Have you tried MacVim. As a test is all

[craigemery]

OK. macOS 10.14.6, neovim 0.4.3, Python 3.7.7, my ~/.config/nvim/init.vim simply has source ~/.vimrc and I see the error.
I've been using macvim without issue. This is the first time I've installed neovim. So I'll see what I can do.

[craigemery]

Can you try changing the start method to fork as referenced in #34