command 'python.setInterpreter' not found when using code-server > 3.4.1

[yijingru]

Hi,

I think my code-server updates the python version (2020.6.88468) automatically, and yesterday I cannot add the python interpreter, the command windows outputs:

Command 'Python: Select Interpreter' resulted in an error (command 'python.setInterpreter' not found)

I rolled back the python version, but it does not help. For example, python2020.5.80290 can add the interpreter, but it raises another problem of the debugger

Error: The number of constructor arguments in the derived class s must be >= than the number of constructor arguments of its base class.
    at /root/.local/share/code-server/extensions/ms-python.python-2020.5.80290/out/client/debugger/debugAdapter/main.js:16:49625

The following information is the coder-server version and vs code version:

code-server: v3.4.1
VS Code: v1.45.1

[frozen-icecube]

The title of the jira should be constructor args mismatch causing debug adapter to fail and not being able to load debugger for python.

I have now tried code-server version 3.2.0, 3.3.1 and 3.4.1 with various combinations of ms-python versions.

ms-python 2020.6.88468 does not even load. So i tried with all the way back down to 2020.3.69010. The older versions load but they are getting the mismatched constructor args issue.

Does anyone know what changed in ms-python / language server as code-server 3.3.1 was working fine along with older 2020.5.x version of ms-python?

Is this potentially due to debugpy related switch or an inversifyjs issue ?

I even tried with using the latest node-v14.4.0 but that also does not help...

Actual error :

Error: The number of constructor arguments in the derived class s must be >= than the number of constructor arguments of its base class.

Error Log File : debugger.vscode_8d2dc057-6410-479a-8896-afb0ba5c2d69.log

Thanks for any suggestions...

Also raised a jira on code-server side : coder/code-server#1821

[karrtikr]

The rollback issue was because of a bug which opted users out of experiments. It should be fixed now with da85a76
Reload to activate the extension again, which will download the fresh experiments. Then reload again and the extension will be activated using the new experiments.

[yijingru]

Thank you @karrtikr, the python extension 5.86806 now is good. But the newest version 6.89148 still has the problem of Error: The number of constructor arguments in the derived class s must be >= than the number of constructor arguments of its base class, and the previous version 6.89468 cannot load the python interpreter. But anyway, I can use 5.86806 instead. Thanks a lot!!

[frozen-icecube]

I found a solution. You have to move to code-server 3.4.1 and then downgrade ms-python to 2020.5.x and all will be good.

[yijingru]

@gauravk88 thanks.