Can't start ipykernel when launching vscode from WSL

Bug: Notebook Editor, Interactive Window, Editor cells

Steps to cause the bug to occur

1. Start VS Code from WSL
2. Create a python virtual environment and select it as python interpreter
3. Activate the virtual environment and install ipykernel
4. Create and edit a .ipynb file
5. Execute it

Actual behavior

Notification area shows this message

StdErr from ShellExec, your 131072x1 screen size is bogus. expect trouble your 131072x1 screen size is bogus. expect trouble your 131072x1 screen size is bogus. expect trouble your 131072x1 screen size is bogus. expect trouble for . /home/revz/devel/python/notebooks/catch4/env/bin/activate && echo ‘e8b39361-0157-4923-80e1-22d70d46dee6’ && python /home/revz/.vscode-server/extensions/ms-python.python-2020.9.114305/pythonFiles/pyvsc-run-isolated.py /home/revz/.vscode-server/extensions/ms-python.python-2020.9.114305/pythonFiles/printEnvVariables.py

Expected behavior

Your Jupyter and/or Python environment

Please provide as much info as you readily know

• Jupyter server running: Local
• Extension version: 2020.9.114305
• VS Code version: 1.50.1 (user setup)
• Setting python.jediEnabled: using pylance
• Setting python.languageServer: Pylance
• Python and/or Anaconda version: 3.8.5
• OS: Windows_NT x64 10.0.20236 - WSL2 Ubuntu 20.04
• Virtual environment: venv

Python Output

Error 2020-10-19 13:01:19: Jupyter Kernel Spec not found for a local connection Error 2020-10-19 13:01:20: getActivatedEnvironmentVariables [Error: StdErr from ShellExec, your 131072x1 screen size is bogus. expect trouble your 131072x1 screen size is bogus. expect trouble your 131072x1 screen size is bogus. expect trouble your 131072x1 screen size is bogus. expect trouble for . /home/revz/devel/python/notebooks/catch4/env/bin/activate && echo ‘e8b39361-0157-4923-80e1-22d70d46dee6’ && python /home/revz/.vscode-server/extensions/ms-python.python-2020.9.114305/pythonFiles/pyvsc-run-isolated.py /home/revz/.vscode-server/extensions/ms-python.python-2020.9.114305/pythonFiles/printEnvVariables.py at E.getActivatedEnvironmentVariablesImpl (/home/revz/.vscode-server/extensions/ms-python.python-2020.9.114305/out/client/extension.js:56:799964) at processTicksAndRejections (internal/process/task_queues.js:94:5)] Error 2020-10-19 13:01:20: getActivatedEnvironmentVariables, Class name = E, completed in 235ms, has a falsy return value, Arg 1: Uri:/home/revz/devel/python/notebooks/catch4/test.ipynb, Arg 2: {“architecture”:3,“path”:“/home/revz/devel/python/notebooks/catch4/env/bin/python”,“version”:{“options”:{“loose”:false,“includePrerelease”:false},“loose”:false,“raw”:“3.8.5-final”,“major”:3,“minor”:8,“patch”:5,“prerelease”:[“final”],“build”:[],“version”:“3.8.5-final”},“sysPrefix”:“/home/revz/devel/python/notebooks/catch4/env”,“fileHash”:“a68d09f1a0ebabab404ab39bc948d0b28b61f6b8e6b44b7fff5f4a71ac9ef778fe34d590e084adfb6146fc43ca720e4fe30def837aab7e80ec22da55a3baeed2”,“envName”:“env”,“type”:“Venv”,“displayName”:“Python 3.8.5 64-bit (‘env’)”}, Arg 3: true [Error: StdErr from ShellExec, your 131072x1 screen size is bogus. expect trouble your 131072x1 screen size is bogus. expect trouble your 131072x1 screen size is bogus. expect trouble your 131072x1 screen size is bogus. expect trouble for . /home/revz/devel/python/notebooks/catch4/env/bin/activate && echo ‘e8b39361-0157-4923-80e1-22d70d46dee6’ && python /home/revz/.vscode-server/extensions/ms-python.python-2020.9.114305/pythonFiles/pyvsc-run-isolated.py /home/revz/.vscode-server/extensions/ms-python.python-2020.9.114305/pythonFiles/printEnvVariables.py at E.getActivatedEnvironmentVariablesImpl (/home/revz/.vscode-server/extensions/ms-python.python-2020.9.114305/out/client/extension.js:56:799964) at processTicksAndRejections (internal/process/task_queues.js:94:5)] Error 2020-10-19 13:01:20: Failed to create the daemon service, defaulting to activated environment [Error: StdErr from ShellExec, your 131072x1 screen size is bogus. expect trouble your 131072x1 screen size is bogus. expect trouble your 131072x1 screen size is bogus. expect trouble your 131072x1 screen size is bogus. expect trouble for . /home/revz/devel/python/notebooks/catch4/env/bin/activate && echo ‘e8b39361-0157-4923-80e1-22d70d46dee6’ && python /home/revz/.vscode-server/extensions/ms-python.python-2020.9.114305/pythonFiles/pyvsc-run-isolated.py /home/revz/.vscode-server/extensions/ms-python.python-2020.9.114305/pythonFiles/printEnvVariables.py at E.getActivatedEnvironmentVariablesImpl (/home/revz/.vscode-server/extensions/ms-python.python-2020.9.114305/out/client/extension.js:56:799964) at processTicksAndRejections (internal/process/task_queues.js:94:5)] Error 2020-10-19 13:01:20: Failed to connect raw kernel session: Error: StdErr from ShellExec, your 131072x1 screen size is bogus. expect trouble your 131072x1 screen size is bogus. expect trouble your 131072x1 screen size is bogus. expect trouble your 131072x1 screen size is bogus. expect trouble for . /home/revz/devel/python/notebooks/catch4/env/bin/activate && echo ‘e8b39361-0157-4923-80e1-22d70d46dee6’ && python /home/revz/.vscode-server/extensions/ms-python.python-2020.9.114305/pythonFiles/pyvsc-run-isolated.py /home/revz/.vscode-server/extensions/ms-python.python-2020.9.114305/pythonFiles/printEnvVariables.py Error 2020-10-19 13:01:20: DataScience Error [Error: StdErr from ShellExec, your 131072x1 screen size is bogus. expect trouble your 131072x1 screen size is bogus. expect trouble your 131072x1 screen size is bogus. expect trouble your 131072x1 screen size is bogus. expect trouble for . /home/revz/devel/python/notebooks/catch4/env/bin/activate && echo ‘e8b39361-0157-4923-80e1-22d70d46dee6’ && python /home/revz/.vscode-server/extensions/ms-python.python-2020.9.114305/pythonFiles/pyvsc-run-isolated.py /home/revz/.vscode-server/extensions/ms-python.python-2020.9.114305/pythonFiles/printEnvVariables.py at E.getActivatedEnvironmentVariablesImpl (/home/revz/.vscode-server/extensions/ms-python.python-2020.9.114305/out/client/extension.js:56:799964) at processTicksAndRejections (internal/process/task_queues.js:94:5)] Error 2020-10-19 13:01:20: getActivatedEnvironmentVariables [Error: StdErr from ShellExec, your 131072x1 screen size is bogus. expect trouble your 131072x1 screen size is bogus. expect trouble your 131072x1 screen size is bogus. expect trouble your 131072x1 screen size is bogus. expect trouble for . /home/revz/devel/python/notebooks/catch4/env/bin/activate && echo ‘e8b39361-0157-4923-80e1-22d70d46dee6’ && python /home/revz/.vscode-server/extensions/ms-python.python-2020.9.114305/pythonFiles/pyvsc-run-isolated.py /home/revz/.vscode-server/extensions/ms-python.python-2020.9.114305/pythonFiles/printEnvVariables.py at E.getActivatedEnvironmentVariablesImpl (/home/revz/.vscode-server/extensions/ms-python.python-2020.9.114305/out/client/extension.js:56:799964) at processTicksAndRejections (internal/process/task_queues.js:94:5)] Error 2020-10-19 13:01:20: getActivatedEnvironmentVariables, Class name = E, completed in 282ms, has a falsy return value, Arg 1: Uri:/home/revz/devel/python/notebooks/catch4/test.ipynb, Arg 2: {“architecture”:3,“path”:“/home/revz/devel/python/notebooks/catch4/env/bin/python”,“version”:{“options”:{“loose”:false,“includePrerelease”:false},“loose”:false,“raw”:“3.8.5-final”,“major”:3,“minor”:8,“patch”:5,“prerelease”:[“final”],“build”:[],“version”:“3.8.5-final”},“sysPrefix”:“/home/revz/devel/python/notebooks/catch4/env”,“fileHash”:“a68d09f1a0ebabab404ab39bc948d0b28b61f6b8e6b44b7fff5f4a71ac9ef778fe34d590e084adfb6146fc43ca720e4fe30def837aab7e80ec22da55a3baeed2”,“envName”:“env”,“type”:“Venv”,“displayName”:“Python 3.8.5 64-bit (‘env’)”}, Arg 3: true [Error: StdErr from ShellExec, your 131072x1 screen size is bogus. expect trouble your 131072x1 screen size is bogus. expect trouble your 131072x1 screen size is bogus. expect trouble your 131072x1 screen size is bogus. expect trouble for . /home/revz/devel/python/notebooks/catch4/env/bin/activate && echo ‘e8b39361-0157-4923-80e1-22d70d46dee6’ && python /home/revz/.vscode-server/extensions/ms-python.python-2020.9.114305/pythonFiles/pyvsc-run-isolated.py /home/revz/.vscode-server/extensions/ms-python.python-2020.9.114305/pythonFiles/printEnvVariables.py at E.getActivatedEnvironmentVariablesImpl (/home/revz/.vscode-server/extensions/ms-python.python-2020.9.114305/out/client/extension.js:56:799964) at processTicksAndRejections (internal/process/task_queues.js:94:5)]

Microsoft Data Science for VS Code Engineering Team: @rchiodo, @IanMatthewHuff, @DavidKutu, @DonJayamanne, @greazer, @joyceerhl

[rchiodo]

This isn’t reproing for me anymore. Works fine if I:

1. Launch Code from a WSL prompt
2. Install a new venv
3. Run a cell in the interactive window (it will ask to install ipykernel and then the interactive window opens).

[tarasivashchuk]

FYI this happens if you exit VS Code with an open instance of the integrated terminal. To fix:

1. close all your integrated terminals
2. exit vscode
3. restart wsl
4. open vscode from a wsl shell
5. open your notebook before opening an integrated terminal
6. boom