Insiders build: restarting debug sessions fails

[janosh]

Environment data

• VS Code version: 1.36.1
• Extension version: Insiders
• OS and version: macOS 10.14.5
• Python version: 3.6.7 (miniconda)
• Jedi or Language Server: latter

Expected behavior

When clicking the "Restart" button while debugging a code cell in the Python interactive window, I'd expect the debugger to reset state and jump back to line 1 of the cell.

Actual behavior

Clicking the "Restart" button just cancels the current debug session.

[greazer]

For now we don't have the resources to figure out how to fix this. It may not be possible with the current VSCode debugging architecture.

[janosh]

@greazer If it's not too much trouble, could you briefly explain (for anyone who might revisit this issue in the future) what this hinges on? I.e. do you know which part of the debugging architecture is lacking?

[DonJayamanne]

Can I suggest we display an error indicating this feature isn't supported.
This way we know it's not a bug, instead it is by design.

[janosh]

@greazer I think it's worth reopening this issue at least until the notification suggested by @DonJayamanne is implemented.