IntelliSense no longer working

[abartlett004]

Suddenly, the auto-complete and colored font features of Intellisense are no longer working for me, although it seems that pylint is still working because it has found problems in my script. I have tried closing and reopening VS code, uninstalling and reinstalling VS code, uninstalling and reinstalling the Python, Jupyter, and Pylance extensions, and changing my Python language server settings from default to Pylance to Jedi and back again with no success.

I am using VS code 1.58 and Python 3.7.9. Any ideas as to what could be causing this? I'm happy to provide any additional info.

[brettcannon]

Someone asked a similar question on Discord; was that you as well? I would prefer to respond in a single location else I'm going to be wasting a lot of my time repeating myself. 😄 Would you rather get help here or over on Discord if both cases happen to be you?

If the person on Discord isn't you, then I'll ask the same questions I asked over there ...

Do you have the Python and Pylance extensions installed? What do you have python.languageServer set to? Are both extensions loaded (check the Output logs for details)? As for font colouring, do you mean all syntax highlighting for Python code or just semantic colouring? Is this in a normal Python file or is this in a Jupyter notebook?

[abartlett004]

Yes, that was me! I wasn't sure what my chances were of receiving a response so I posted in both places. Suddenly today for no apparent reason it started working again. Hopefully it stays that way, but if not or in case anyone else has this problem in the future, here are the answers to your questions:

Yes, both the Python and Pylance extensions are installed.
Python language server is currently set to Pylance, although I also tried Default, Microsoft, and Jedi yesterday when it wasn't working with no success.
I think I mean semantic coloring--there was still some coloring being applied, for example on words like "for" and "def", but previously defined variables were remaining uncolored and there were no red squiggly lines
It is a normal Python file.

[abartlett004]

...and now it isn't working again. The output log is below--maybe the server is getting stuck loading?

[Info - 2:42:39 PM] Pylance language server 2021.7.4 (pyright 209f9621) starting
[Info - 2:42:39 PM] Server root directory: /home/abartlett/.vscode-server/extensions/ms-python.vscode-pylance-2021.7.4/dist

[brettcannon]

I've opened microsoft/pylance-release#1569 as a bug report.