Python 3.8: TypeError: 'type' object is not subscriptable

[gptlang]

Traceback (most recent call last):
  File "/usr/local/lib/python3.8/dist-packages/pynvim/plugin/host.py", line 193, in _load
    module = _handle_import(directory, name)
  File "/usr/local/lib/python3.8/dist-packages/pynvim/plugin/host.py", line 40, in _handle_import
    return importlib.import_module(name)
  File "/usr/lib/python3.8/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
TypeError: 'type' object is not subscriptable

Reference: CopilotC-Nvim/CopilotChat.nvim#18

[justinmk]

pynvim/pynvim/plugin/host.py

Line 40 in 5f989df

return importlib.import_module(name)

That seems like a bug in importlib? Does it work on later python versions?

[justinmk]

Traceback (most recent call last):
File "/usr/local/lib/python3.8/dist-packages/pynvim/plugin/host.py", line 193, in _load
module = _handle_import(directory, name)

That seems like an out of date package. Maybe there are changes on master that weren't release yet. Here's line 193:

pynvim/pynvim/plugin/host.py

Line 193 in 5f989df

continue

[gptlang]

That seems like a bug in importlib? Does it work on later python versions?

Yes. Works on later versions. I'm pretty sure importlib is standard library though; it shouldn't be out of date

[justinmk]

I mean that your pynvim source is out of date compared to pynvim master (can you try that)?

[acheong08]

pip install git+https://github.com/neovim/pynvim?

CC @Cassius0924

Edit: oops, wrong account

[Cassius0924]

git install git+https://github.com/neovim/pynvim?

CC @Cassius0924

Edit: oops, wrong account

It seems like there's a small mistake in your command. It's pip install not git install.

I used pip install git+https://github.com/neovim/pynvim to upgrade the pynvim version to 0.5.0.dev0, but there are still errors, but the error line has changed from line 193 to line 187

Encountered TypeError loading plugin at /root/.local/share/lunarvim/site/pack/lazy/opt/CopilotChat.nvim/rplugin/python3/utilities.py: 'type' object is not subscriptable
Traceback (most recent call last):
  File "/usr/local/lib/python3.8/dist-packages/pynvim/plugin/host.py", line 187, in _load
    module = _handle_import(directory, name)
  File "/usr/local/lib/python3.8/dist-packages/pynvim/plugin/host.py", line 40, in _handle_import
    return importlib.import_module(name)
  File "/usr/lib/python3.8/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
TypeError: 'type' object is not subscriptable

remote/host: python3 host registered plugins []
remote/host: generated rplugin manifest: /root/.local/share/lvim/rplugin.vim

[acheong08]

It seems like there's a small mistake in your command. It's pip install not git install.

Yup. Typo

Could you try to reproduce this with a minimal Python file by importing importlib and calling it?

[Cassius0924]

Like below?

I wrote a Python file:

import importlib
import sys

sys.path.append(
    "/root/.local/share/lunarvim/site/pack/lazy/opt/CopilotChat.nvim/rplugin/python3"
)


def test_import(name):
    importlib.import_module(name)


test_import("copilot")

Still getting error after running:

Traceback (most recent call last):
  File "t_1.py", line 17, in <module>
    test_import("copilot")
  File "t_1.py", line 11, in test_import
    importlib.import_module(name)
  File "/usr/lib/python3.8/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 848, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/root/.local/share/lunarvim/site/pack/lazy/opt/CopilotChat.nvim/rplugin/python3/copilot.py", line 10, in <module>
    import utilities
  File "/root/.local/share/lunarvim/site/pack/lazy/opt/CopilotChat.nvim/rplugin/python3/utilities.py", line 13, in <module>
    chat_history: list[typings.Message],
TypeError: 'type' object is not subscriptable

[Cassius0924]

This error seems not to be from pynvim, but from CopilotChat. I tried replacing list with List and it worked normally.

[gptlang]

Ah I see. I suppose I got confused by the error output

[wookayin]

Yes, the error was coming from the rplugin code, but the error message printed in Nvim can be confusing. We can improve error messages to clearly indicate that the SyntaxError/RuntimeError originates from the remote plugin.