Jedi: Execute command 'vscode.executeHoverProvider' doesn't return

[TAUnionOtto]

Environment data

• VS Code version: 1.54.1
• Extension version (available under the Extensions sidebar): 2021.2.636928669
• OS and version: Windows 10 1909
• Python version (& distribution if applicable, e.g. Anaconda): 3.9.2 (in Windows)
• Type of virtual environment used (N/A | venv | virtualenv | conda | ...): N/A
• Relevant/affected Python packages and their versions: N/A
• Relevant/affected Python-related VS Code extensions and their versions: N/A
• Value of the python.languageServer setting: N/A

Expected behaviour

Show document when hovering like in normal python file.

Actual behaviour

Keeps show loading.

Steps to reproduce:

1. Register TextDocumentContentProvider for saving and providing virtual document for python code block in markdown file.
2. Register CompletionItemProvider to get virtual document and execute command 'vscode.executeCompletionItemProvider' for provide IntelliSense of python. (And it works good.)
3. Register HoverProvider to get virtual document (same way and code as CompletionItemProvider) and execute command 'vscode.executeHoverProvider' for provide language hovering of python.
4. It keeps showing loading when hover any text.

Demo:

Code is here

• Clone and run yarn && yarn watch, then press F5 to run extension.
• Create a markdown file and copy paragraph block example from README.md (same as above gif).
• Type in code block.

Logs

Output for Python in the Output panel (View→Output, change the drop-down the upper-right of the Output panel to Python)

> ~\AppData\Local\Programs\Python\Python39\python.exe c:\Users\EDZ\.vscode\extensions\ms-toolsai.jupyter-2021.3.619093157\pythonFiles\pyvsc-run-isolated.py pip list
> ~\AppData\Local\Programs\Python\Python39\python.exe c:\Users\EDZ\.vscode\extensions\ms-toolsai.jupyter-2021.3.619093157\pythonFiles\pyvsc-run-isolated.py pip list
> ~\.msvscode.hdinsight\hdinsightJupyter\Scripts\python.exe c:\Users\EDZ\.vscode\extensions\ms-toolsai.jupyter-2021.3.619093157\pythonFiles\pyvsc-run-isolated.py -c "import jupyter"
> ~\.msvscode.hdinsight\hdinsightJupyter\Scripts\python.exe c:\Users\EDZ\.vscode\extensions\ms-toolsai.jupyter-2021.3.619093157\pythonFiles\pyvsc-run-isolated.py -c "import notebook"
> ~\.msvscode.hdinsight\hdinsightJupyter\Scripts\python.exe c:\Users\EDZ\.vscode\extensions\ms-toolsai.jupyter-2021.3.619093157\pythonFiles\pyvsc-run-isolated.py jupyter kernelspec --version

[TAUnionOtto]

Copy from microsoft/vscode#118944

[karthiknadig]

@TAUnionOtto What is the language server that is selected? We do slightly different things depending on Jedi and Other language server.

[TAUnionOtto]

@TAUnionOtto What is the language server that is selected? We do slightly different things depending on Jedi and Other language server.

Jedi is selected (as default), I haven't changed this setting anywhere.

[karthiknadig]

@TAUnionOtto Do you get the same behavior if you select any other language server?

[TAUnionOtto]

@TAUnionOtto Do you get the same behavior if you select any other language server?

• Jedi

  • IntelliSense: Work
  • Hover: Not work, keeps show loading

• JediLSP

  • IntelliSense: Work
  • Hover: Work, but it looks like the formatting is lost

  

• Microsoft

  • IntelliSense: Not work well
  • Hover: Work sometime

  

• None
  Of course not work

• Pylance

  • IntelliSense: Work
  • Hover: Work, but different from Jedi

  

[karthiknadig]

@TAUnionOtto Jedi will be deprecated and replaced by JediLSP soon. The Markdown formatting with JediLSP is addressed in the latest version of the jedi-language-server, but to avoid shipping multiple versions of Jedi we are using a older version of jedi. This should look better when we switch over to JediLSP.

Microsoft (Microsoft Language Server) will be deprecated and replaced by Pylance.

We have moved the efforts for Jedi and Microsoft over to JediLSP and Pylance, so we recommend using those.

[TAUnionOtto]

@karthiknadig Thanks for helping, I will try to use JediLSP as language server.

Looking forward to your good news for switching over to JediLSP.

[karthiknadig]

Closing this issue, since it works with JediLSP or Pylance.