Hash symbol highlighted as comment in triple-quoted raw strings #25704
Description
Type: Bug
Behaviour
Hash symbol (#) is syntax highlighted as comment in multiline raw strings, while in such cases it does not start a comment as per the language grammar.
Steps to reproduce:
Create a python file and insert the following code:
s = r"""
this should not be presented as comment: # comment here
"""
s = r'''
this should not be presented as comment: # comment here
'''
s_nonraw = """
this should not be presented as comment: # comment here
"""
ss_raw = r"this should not be presented as comment: # comment here"
Diagnostic data
Output for Python in the Output panel (View→Output, change the drop-down the upper-right of the Output panel to Python)
2025-12-29 21:17:04.170 [info] Experiment 'pythonRecommendTensorboardExt' is active
2025-12-29 21:17:04.170 [info] Experiment 'pythonREPLSmartSend' is active
2025-12-29 21:17:04.170 [info] Experiment 'pythonTerminalEnvVarActivation' is active
2025-12-29 21:17:04.170 [info] Experiment 'pythonTestAdapter' is active
2025-12-29 21:17:04.170 [info] Skipping ActivatedEnv Detection: process.env.VSCODE_CLI !== '1'
2025-12-29 21:17:04.170 [info] > conda info --json
2025-12-29 21:17:04.173 [info] Python interpreter path: /bin/python
2025-12-29 21:17:04.280 [info] > /usr/share/anaconda/bin/conda info --json
2025-12-29 21:17:04.884 [info] > ~/.conda/bin/conda info --json
2025-12-29 21:17:04.889 [info] > ~/.condarc/bin/conda info --json
2025-12-29 21:17:05.875 [info] > ~/.conda/envs/vehicle_mtmc/bin/conda info --json
2025-12-29 21:17:06.908 [info] Starting Pylance language server.
Extension version: 2025.20.1
VS Code version: Code 1.107.1 (994fd12f8d3a5aa16f17d42c041e5809167e845a, 2025-12-17T14:15:14.850Z)
OS version: Linux x64 6.17.8-200.fc42.x86_64
Modes:
- Python version (& distribution if applicable, e.g. Anaconda): 3.13.9
- Type of virtual environment used (e.g. conda, venv, virtualenv, etc.): Global
- Value of the
python.languageServersetting: Default
User Settings
venvFolders: "<placeholder>"
languageServer: "Pylance"
Installed Extensions
| Extension Name | Extension Id | Version |
|---|---|---|
| autodocstring | njp | 0.6.1 |
| autopep8 | ms- | 2025.2.0 |
| Bookmarks | ale | 13.5.0 |
| cmake-tools | ms- | 1.21.36 |
| copilot-chat | Git | 0.33.5 |
| cpptools | ms- | 1.29.3 |
| debugpy | ms- | 2025.19.2025121701 |
| emacs-mcx | tut | 0.65.1 |
| gruvbox-themes | tom | 1.0.0 |
| js-debug | ms- | 1.105.0 |
| js-debug-companion | ms- | 1.1.3 |
| jupyter | ms- | 2025.9.1 |
| jupyter-keymap | ms- | 1.1.2 |
| jupyter-renderers | ms- | 1.3.0 |
| markdown-all-in-one | yzh | 3.6.3 |
| MetaJump | met | 1.4.4 |
| powershell | ms- | 2025.4.0 |
| prettier-vscode | esb | 11.0.2 |
| python | ms- | 2025.20.1 |
| quarto | qua | 1.127.0 |
| r | REd | 2.8.6 |
| r-syntax | REd | 0.1.3 |
| rainbow-csv | mec | 3.23.0 |
| remote-explorer | ms- | 0.5.0 |
| remote-server | ms- | 1.5.3 |
| remote-ssh | ms- | 0.120.0 |
| remote-ssh-edit | ms- | 0.87.0 |
| ruff | cha | 2025.32.0 |
| shell-format | fox | 7.2.8 |
| vscode-dotnet-runtime | ms- | 3.0.0 |
| vscode-js-profile-table | ms- | 1.0.10 |
| vscode-jupyter-cell-tags | ms- | 0.1.9 |
| vscode-jupyter-slideshow | ms- | 0.1.6 |
| vscode-language-babel | mgm | 0.0.40 |
| vscode-pylance | ms- | 2025.10.4 |
| vscode-python-envs | ms- | 1.15.13521014 |
System Info
| Item | Value |
|---|---|
| CPUs | 13th Gen Intel(R) Core(TM) i5-13400 (16 x 2835) |
| GPU Status | 2d_canvas: enabled direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok skia_graphite: disabled_off trees_in_viz: disabled_off video_decode: enabled video_encode: disabled_software vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: disabled_off webnn: disabled_off |
| Load (avg) | 1, 1, 1 |
| Memory (System) | 31.08GB (23.98GB free) |
| Process Argv | --crash-reporter-id f17ad074-a1de-4627-8608-c69721ec0c08 |
| Screen Reader | no |
| VM | 0% |
| DESKTOP_SESSION | plasmax11 |
| XDG_CURRENT_DESKTOP | KDE |
| XDG_SESSION_DESKTOP | KDE |
| XDG_SESSION_TYPE | x11 |