"<class ...>" not shown when an error is raised

[salemileandro]

Environment data

• VS Code version: 1.81.1, 6c3e3dba23e8fadc360aed75ce363ba185c49794, arm64
• Jupyter Extension version (available under the Extensions sidebar): v2023.7.1002162226
• Python Extension version (available under the Extensions sidebar): v2023.14.0
• OS (Windows | Mac | Linux distro) and version: macOS Ventura 13.3.1
• Python and/or Anaconda version: Python 3.10.12, conda 23.7.2
• Type of virtual environment used (N/A | venv | virtualenv | conda | ...): conda
• Jupyter server running: Local

Expected behaviour

Running the following cell

x = int(10)
if not isinstance(x, float):
    message = (
        f"x is not of type {float} but {type(x)=}.\n"
        "(1) <class int> (2) < class int> (3) <class int > (4) < class int >"
    )
    print(message)
    raise TypeError(message)

I expect to get this as an output

x is not of type <class 'float'> but type(x)=<class 'int'>.
(1) <class int> (2) < class int> (3) <class int > (4) < class int >
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
Cell In[7], line 9
      4 message = (
      5     f"x is not of type {float} but {type(x)=}.\n"
      6     "(1)  (2) < class int> (3)  (4) < class int >"
      7 )
      8 print(message)
----> 9 raise TypeError(message)

TypeError: x is not of type  but type(x)=.
(1) <class int> (2) < class int> (3) <class int > (4) < class int >

Actual behaviour

The output is actually

x is not of type <class 'float'> but type(x)=<class 'int'>.
(1) <class int> (2) < class int> (3) <class int > (4) < class int >
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
Cell In[7], line 9
      4 message = (
      5     f"x is not of type {float} but {type(x)=}.\n"
      6     "(1)  (2) < class int> (3)  (4) < class int >"
      7 )
      8 print(message)
----> 9 raise TypeError(message)

TypeError: x is not of type  but type(x)=.
(1)  (2) < class int> (3)  (4) < class int >

The print statement shows the message properly, but raise part doesn't (the last line is not complete).
From what I understand, when an error is raised, if the text contains something like <class int>, then this particular bit of the message is not shown. I think <class ...> doesn't get an interpreter as a string but as an HTML tag.

Steps to reproduce:

1. Open a notebook (python kernel)
2. Execute the cell

x = int(10)
if not isinstance(x, float):
    message = (
        f"x is not of type {float} but {type(x)=}.\n"
        "(1) <class int> (2) < class int> (3) <class int > (4) < class int >"
    )
    print(message)
    raise TypeError(message)

Logs

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

Visual Studio Code (1.81.1, undefined, desktop)
Jupyter Extension Version: 2023.7.1002162226.
Python Extension Version: 2023.14.0.
Platform: darwin (arm64).
Workspace folder ~/Documents/housing, Home = /Users/leandro
23:37:00.906 [info] User belongs to experiment group 'FastKernelPicker'
23:37:00.906 [info] User belongs to experiment group 'NewRemoteUriStorage'
23:37:00.906 [info] User belongs to experiment group 'PasswordManager'
23:37:00.906 [info] User belongs to experiment group 'NewJupyterSession'
23:37:01.157 [info] Start refreshing Kernel Picker (1691703421157)
23:37:01.158 [info] Using Pylance
23:37:01.174 [info] Start refreshing Interpreter Kernel Picker
23:37:02.011 [info] Starting Kernel startUsingPythonInterpreter, .jvsc74a57bd00aa12bc89be0f13c5ae698ac78d8136ea8c98d79e372b4a4da246eb831105402.~/miniconda3/envs/scraping/python.~/miniconda3/envs/scraping/python.-m#ipykernel_launcher  (Python Path: ~/miniconda3/envs/scraping/bin/python, Conda, scraping, 3.9.16) for '~/Documents/.private/housing/dev.ipynb' (disableUI=true)
23:37:02.632 [info] Process Execution: ~/miniconda3/envs/icr/bin/python -m pip list
23:37:03.002 [info] Process Execution: ~/miniconda3/envs/scraping/bin/python -c "import ipykernel; print(ipykernel.__version__); print("5dc3a68c-e34e-4080-9c3e-2a532b2ccb4d"); print(ipykernel.__file__)"
23:37:03.003 [info] Process Execution: ~/miniconda3/envs/scraping/bin/python -m ipykernel_launcher --ip=127.0.0.1 --stdin=9003 --control=9001 --hb=9000 --Session.signature_scheme="hmac-sha256" --Session.key=b"07137207-a2ae-4770-8288-08e3f2a8187b" --shell=9002 --transport="tcp" --iopub=9004 --f=~/Library/Jupyter/runtime/kernel-v2-12145JFncbO2Orc4H.json
    > cwd: ~/Documents/.private/housing
23:37:03.006 [info] Process Execution: ~/miniconda3/envs/scraping/bin/python -m pip list
23:37:03.117 [info] ipykernel version & path 6.22.0, ~/miniconda3/envs/scraping/lib/python3.9/site-packages/ipykernel/__init__.py for ~/miniconda3/envs/scraping/bin/python
23:37:03.324 [warn] StdErr from Kernel Process ~/miniconda3/envs/scraping/lib/python3.9/site-packages/traitlets/traitlets.py:2548: 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(
23:37:03.324 [warn] StdErr from Kernel Process ~/miniconda3/envs/scraping/lib/python3.9/site-packages/traitlets/traitlets.py:2499: FutureWarning: Supporting extra quotes around Bytes is deprecated in traitlets 5.0. Use '07137207-a2ae-4770-8288-08e3f2a8187b' instead of 'b"07137207-a2ae-4770-8288-08e3f2a8187b"'.
  warn(
23:37:03.421 [info] Started Kernel scraping (Python 3.9.16) (pid: 12255)
23:37:03.421 [info] Started new session ea3d6074-8637-41e7-a822-e88fde8d0399
23:37:03.465 [info] Process Execution: ~/miniconda3/envs/scraping/bin/python ~/.vscode/extensions/ms-toolsai.jupyter-2023.7.1002162226-darwin-arm64/pythonFiles/printJupyterDataDir.py
23:37:03.490 [warn] Got a non-existent Jupyer Data Dir file://~/.local/share/jupyter
23:37:03.626 [info] End refreshing Kernel Picker (1691703421157)
23:37:04.916 [info] Handle Execution of Cells 1 for ~/Documents/.private/housing/dev.ipynb
23:37:04.925 [info] Kernel acknowledged execution of cell 1 @ 1691703424921
23:37:05.095 [info] End cell 1 execution @ 1691703425093, started @ 1691703424921, elapsed time = 0.172s
23:37:05.095 [warn] Cancel all remaining cells due to cancellation or failure in execution

[amunger]

duplicate of microsoft/vscode#177405