ipykernel 6.0.1 breaks interactive debugger

Issue Type: Bug

I am working with anaconda as my Python distro and in my environment I updated ipykernel to the 6.0.1 version today.

As soon as I did this the interactive debbugger started popping out the following error: Could not load source ‘c:\Users\david\AppData\Local\Temp\ipykernel_17508\2969028694.py’: Unable to retrieve source for C:\Users\david\AppData\Local\Temp\ipykernel_17508\2969028694.py.

Downgraded ipykernel to 5.5.5 all went back to normal.

Something in this upgrade is breaking the debugger when running through the interactive interpreter.

Extension version: 2021.6.999662501 VS Code version: Code 1.57.1 (507ce72a4466fbb27b715c3722558bb15afa9f48, 2021-06-17T13:28:07.755Z) OS version: Windows_NT x64 10.0.19043 Restricted Mode: No

System Info

Item	Value
CPUs	Intel® Core™ i7-9750H CPU @ 2.60GHz (12 x 2592)
GPU Status	2d_canvas: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on oop_rasterization: enabled opengl: enabled_on rasterization: enabled skia_renderer: enabled_on video_decode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled
Load (avg)	undefined
Memory (System)	15.82GB (7.02GB free)
Process Argv	. --crash-reporter-id b5fdfc3b-a477-44a1-8dbc-9ec2aadb185b
Screen Reader	no
VM	0%

A/B Experiments

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[IanMatthewHuff]

@HDavidEspinosa Thanks, just making sure that we had the same scenario. Could you grab those logs from the Jupyter output section? I think that would need to see those next, since the repro that I currently see is different.

[DonJayamanne]

How to test:

• Install Python
• WebView Interactive window (Old version of IPyKernel)
  • python -m pip uninstall ipykernel ipython debugpy
  • python -m pip install ipython==7.15.0 ipykernel==5.5.5
  • Debug interactive window
• WebView Interactive window (New version of IPyKernel)
  • python -m pip uninstall ipykernel ipython debugpy
  • python -m pip install ipython
  • Debug interactive window
• Do the same for Native Interactive window
• How to switch between native & webview interactive
  • VS Code Insiders
    • Native Interactive is the default experience,
    • To disable in settings
    • "jupyter.enableNativeInteractiveWindow": false,
    • "python.insidersChannel": "off",
  • VS Code Stable
    • To disable in settings
    • "jupyter.enableNativeInteractiveWindow": false,
    • "python.insidersChannel": "off",
    • To enanle in settings
    • "jupyter.enableNativeInteractiveWindow": true,
    • "python.insidersChannel": "daily",