Yellow line highlighting in jupyter notebook unreadable in default dark themes

Applies To

• Notebooks (.ipynb files)
• Interactive Window and/or Cell Scripts (.py files with #%% markers)

What happened?

I’m not positive if this is primarily a bug in vscode or something else, but after updating vscode (as well as upgrading a few packages in pip), the yellow highlighted lines in python error tracebacks in jupyter notebooks have become essentially unreadable in the default dark themes…

…and better-but-not-great even in the light themes (though I have always used the dark theme before, so I can’t say if the light theme here is better, worse, or same than it was previously)

VS Code Version

Version: 1.63.2 Commit: 899d46d82c4c95423fb7e10e68eba52050e30ba3 Date: 2021-12-15T09:37:28.172Z Electron: 13.5.2 Chromium: 91.0.4472.164 Node.js: 14.16.0 V8: 9.1.269.39-electron.0 OS: Darwin x64 20.6.0

Jupyter Extension Version

v2021.11.1001550889

Jupyter logs

Jupyter Extension Version: 2021.11.1001550889.
Python Extension Verison: 2021.12.1559732655.
Info 16:43:46: Experimentation service retrieved: [object Object]
User belongs to experiment group 'jupyterTest'
User belongs to experiment group 'jupyterEnhancedDataViewer'
Info 16:43:46: ZMQ install verified.
Info 16:43:46: Pre-warming kernel daemon for [redacted]
Info 16:43:48: Experiment status for python is {"enabled":true,"optInto":[],"optOutFrom":[]}
Info 16:43:49: Creating controller for jupyter-notebook with interpreter ~/.pyenv/shims/python3
Info 16:43:51: Freferred kernel connection found in cache .jvsc74a57bd08d3bee82523df57872750accfd1cec38af9ec179d4291b45fb1cca0911ed8e96./Users/ysaxon/.pyenv/shims/python3./Users/ysaxon/.pyenv/shims/python3.-m#ipykernel_launcher
Info 16:43:51: PreferredConnection: .jvsc74a57bd08d3bee82523df57872750accfd1cec38af9ec179d4291b45fb1cca0911ed8e96./Users/ysaxon/.pyenv/shims/python3./Users/ysaxon/.pyenv/shims/python3.-m#ipykernel_launcher found for NotebookDocument: untitled:Untitled-1.ipynb?jupyter-notebook
Info 16:43:51: TargetController found ID: .jvsc74a57bd08d3bee82523df57872750accfd1cec38af9ec179d4291b45fb1cca0911ed8e96./Users/ysaxon/.pyenv/shims/python3./Users/ysaxon/.pyenv/shims/python3.-m#ipykernel_launcher for document untitled:Untitled-1.ipynb?jupyter-notebook
Info 16:43:51: Setting controller affinity for untitled:Untitled-1.ipynb?jupyter-notebook .jvsc74a57bd08d3bee82523df57872750accfd1cec38af9ec179d4291b45fb1cca0911ed8e96./Users/ysaxon/.pyenv/shims/python3./Users/ysaxon/.pyenv/shims/python3.-m#ipykernel_launcher
Info 16:43:51: Process Execution: > ~/.pyenv/shims/python3 -m pip list
> ~/.pyenv/shims/python3 -m pip list
Info 16:43:51: Process Execution: > ~/.pyenv/shims/python3 -c "import ipykernel"
> ~/.pyenv/shims/python3 -c "import ipykernel"
Info 16:43:52: Registering dummy command feature
Warn 16:43:54: Got env variables but with errors, stdErr:pyenv: activate: command not found
, stdOut: e8b39361-0157-4923-80e1-22d70d46dee6
{"PYENV_ROOT": "/Users/ysaxon/.pyenv", "SHELL": "/bin/zsh", "CLICOLOR": "1", "TMPDIR": "/var/folders/l5/hz74y6ps3x1gktbp6wq4kng80000gn/T/", "PYTHONUNBUFFERED": "1", "ORIGINAL_XDG_CURRENT_DESKTOP": "undefined", "HOMEBREW_AUTO_UPDATE_SECS": "36000", "PYENV_VERSION": "3.9.1", "USER": "ysaxon", "PYTHONIOENCODING": "utf-8", "LS_COLORS": "di=1;36:ln=35:so=32:pi=33:ex=31:bd=34;46:cd=34;43:su=30;41:sg=30;46:tw=30;42:ow=30;43", "COMMAND_MODE": "unix2003", "VSCODE_VERBOSE_LOGGING": "true", "PYTHONWARNINGS": "ignore", [redacted], "PYENV_DIR": "/", "__CF_USER_TEXT_ENCODING": "0x1F5:0x0:0x0", "VSCODE_PIPE_LOGGING": "true", "VSCODE_LOG_STACK": "false", "ELECTRON_RUN_AS_NODE": "1", "VSCODE_AMD_ENTRYPOINT": "vs/workbench/services/extensions/node/extensionHostProcess", "LSCOLORS": "Gxfxcxdxbxegedabagacad", "PATH":[redacted], "__CFBundleIdentifier": "com.microsoft.VSCode", "PWD": "/", "DOTNET_ROOT": "/usr/local/opt/dotnet/libexec", "VSCODE_HANDLES_UNCAUGHT_ERRORS": "true", "PYENV_HOOK_PATH": "/Users/ysaxon/.pyenv/pyenv.d:/usr/local/Cellar/pyenv/2.2.2/pyenv.d:/usr/local/etc/pyenv.d:/etc/pyenv.d:/usr/lib/pyenv/hooks", "XPC_FLAGS": "0x0", "VSCODE_LOG_NATIVE": "false", "XPC_SERVICE_NAME": "0", "HOME": "/Users/ysaxon", "SHLVL": "1", "PYENV_SHELL": "zsh", "APPLICATION_INSIGHTS_NO_DIAGNOSTIC_CHANNEL": "true", "VSCODE_NLS_CONFIG": "{\"locale\":\"en-us\",\"availableLanguages\":{},\"_languagePackSupport\":true}", [redacted], "LOGNAME": "ysaxon", "VSCODE_CODE_CACHE_PATH": "/Users/ysaxon/Library/Application Support/Code/CachedData/899d46d82c4c95423fb7e10e68eba52050e30ba3", "VSCODE_IPC_HOOK": "/Users/ysaxon/Library/Application Support/Code/1.63.2-main.sock", "VSCODE_PID": "49288", [redacted], "DISPLAY": "/private/tmp/com.apple.launchd.KosoosRCV0/org.xquartz:0", "VSCODE_CWD": "/", "LC_CTYPE": "UTF-8"}

Info 16:43:54: Creating daemon process for ~/.pyenv/shims/python3 with env variables count 44
Info 16:43:54: Process Execution: > ~/.pyenv/shims/python3 -m vscode_datascience_helpers.daemon --daemon-module=vscode_datascience_helpers.kernel_launcher_daemon -v
> ~/.pyenv/shims/python3 -m vscode_datascience_helpers.daemon --daemon-module=vscode_datascience_helpers.kernel_launcher_daemon -v
Info 16:43:54: Setting setActiveController for untitled:Untitled-1.ipynb?jupyter-notebook
Info 16:43:54: KernelProvider switched kernel to id = .jvsc74a57bd0d56f012628c4bdae5b36dd163bc1bea99a0fa96644464dcc722a7d645b866801./Users/ysaxon/.pyenv/versions/3.9.1/python./Users/ysaxon/.pyenv/versions/3.9.1/python.-m#ipykernel_launcher
Info 16:43:54: Starting Notebook in kernel.ts id = .jvsc74a57bd0d56f012628c4bdae5b36dd163bc1bea99a0fa96644464dcc722a7d645b866801./Users/ysaxon/.pyenv/versions/3.9.1/python./Users/ysaxon/.pyenv/versions/3.9.1/python.-m#ipykernel_launcher
Info 16:43:54: Creating raw notebook for untitled:Untitled-1.ipynb?jupyter-notebook
Info 16:43:54: Getting preferred kernel for untitled:Untitled-1.ipynb?jupyter-notebook
Info 16:43:54: Computing working directory untitled:Untitled-1.ipynb?jupyter-notebook
Info 16:43:54: Starting raw kernel 3.9.1 (Python 3.9.1)
Info 16:43:54: installMissingDependencies ~/.pyenv/versions/3.9.1/bin/python
Info 16:43:54: IPykernel found previously in this enviornment ~/.pyenv/versions/3.9.1/bin/python
Info 16:43:54: Kernel launching with ports 9000,9001,9002,9003,9004. Start port is 9000
Info 16:43:54: Launching kernel daemon for Python 3.9.1 64-bit ('3.9.1': pyenv) # ~/.pyenv/versions/3.9.1/bin/python
Info 16:43:54: No custom variables for Kernel as interpreter is not conda, but is Pyenv
Info 16:44:00: Process Execution: > ~/.pyenv/versions/3.9.1/bin/python -m pip list
> ~/.pyenv/versions/3.9.1/bin/python -m pip list
Info 16:44:00: Creating daemon process for ~/.pyenv/versions/3.9.1/bin/python with env variables count 0
Info 16:44:00: Process Execution: > ~/.pyenv/versions/3.9.1/bin/python -m vscode_datascience_helpers.daemon --daemon-module=vscode_datascience_helpers.kernel_launcher_daemon -v
> ~/.pyenv/versions/3.9.1/bin/python -m vscode_datascience_helpers.daemon --daemon-module=vscode_datascience_helpers.kernel_launcher_daemon -v
Info 16:44:01: Starting kernel from scratch
Warn 16:44:08: StdErr from Kernel Process /Users/ysaxon/.pyenv/versions/3.9.1/lib/python3.9/site-packages/traitlets/traitlets.py:2202: FutureWarning: Supporting extra quotes around strings is deprecated in traitlets 5.0. You can use 'hmac-sha256' instead of '"hmac-sha256"' if you require traitlets >=5.

Warn 16:44:08: StdErr from Kernel Process   warn(

Warn 16:44:08: StdErr from Kernel Process /Users/ysaxon/.pyenv/versions/3.9.1/lib/python3.9/site-packages/traitlets/traitlets.py:2157: FutureWarning: Supporting extra quotes around Bytes is deprecated in traitlets 5.0. Use 'e0b76c2c-a262-4384-a16c-6b6db6ef909b' instead of 'b"e0b76c2c-a262-4384-a16c-6b6db6ef909b"'.

Warn 16:44:08: StdErr from Kernel Process   warn(

Warn 16:44:08: Didn't get response for requestKernelInfo after 23ms.
Info 16:44:08: Raw session started and connected
Started kernel 3.9.1 (Python 3.9.1)
Info 16:44:08: Finished connecting 5f25f0b4-34bb-4ecf-8ea8-f716d1d0f2dd
Info 16:44:08: UpdateWorkingDirectoryAndPath in Kernel
Info 16:44:08: Executing (status unknown) silently Code = %config Completer.use_jedi = False
Info 16:44:08: Executing silently Code (completed) = %config Completer.use_jedi = False
Info 16:44:08: Executing (status idle) silently Code = %config InlineBackend.figure_formats = ['png']
Info 16:44:08: Executing silently Code (completed) = %config InlineBackend.figure_formats = ['png']
Info 16:44:08: Executing (status idle) silently Code = import sys\nprint(sys.executable)
Info 16:44:08: Executing silently Code (completed) = import sys\nprint(sys.executable)
Info 16:44:08: Waiting for idle on (kernel): f150c805-0f4e-41c7-b5e7-2ecc37d9ec3e -> idle
Info 16:44:08: Finished waiting for idle on (kernel): f150c805-0f4e-41c7-b5e7-2ecc37d9ec3e -> idle
Info 16:44:08: IPyWidgetScriptSource.initialize
Info 16:44:10: Registering dummy command feature

Coding Language and Runtime Version

Python 3.9.1

Language Extension Version (if applicable)

No response

Anaconda Version (if applicable)

No response

Running Jupyter locally or remotely?

Local

[rchiodo]

The root cause of this problem before was IPython adding ascii color tokens to the output. You could check your IPython version, perhaps they’ve added new colors since we addressed this. Your best bet would be to open a new issue though.

[antonioalegria]

I still seem to have this problem and I’m using all the latest versions as of September 23rd – do I need to change some configuration?