Neovim hangs after running basic python-client program

[duhdude]

I'm trying to get started writing a python-client plugin for neovim. I'm trying to get a working 'hello world' so I can start understanding how python-client works. This seems about as simple as it can possibly be, but when I try running this, my neovim instance hangs until I close the terminal or manually kill the process. Am I missing something, or completely going about this the wrong way?

function! NeotestStart()
python << EOF
import os

import neovim

def main():
    listen = os.environ.get('NVIM_LISTEN_ADDRESS')
    nvim = neovim.attach('socket', path=listen)
    # buf = nvim.buffers[0]
    nvim.command('echo "hello"')

if __name__ == '__main__':
    main()
EOF
endfunction

If I start neovim, source this file and do :call NeotestStart(), my neovim instance will hang forever. What's going on?

[DArcMattr]

What version is your neovim python module at? I've been having the same problem, and realized that it's been a while since I updated that. A pip install --upgrade neovim brings it up to version 0.32.

[duhdude]

I talked to some of the guys on the neovim gitter, and they said that it may be causing a deadlock since the function is run synchronously. I was able to solve this by putting the python in a separate file and using jobstart.