KeyboardInterrupt seen in terminal when launching python debugger

[bschnurr]

Does this issue occur when all extensions are disabled?: Yes/No

• VS Code Version:
• OS Version:

Possibly related to #278571

Steps to Reproduce:

# basic python test file
def add(a, b):
    return a + b


def test_add():
    assert add(2, 3) == 5
    assert add(-1, 1) == 0
    assert add(0, 0) == 0


if __name__ == "__main__":
    test_add()
    print("All tests passed.")

1. install python extension
2. on windows create a python venv
3. first time trying to debug you will get a 'KeyboardInterrupt' error in 'Python Debug Console'
4. second time success, no error.

[josmithua]

I have also been experiencing this, both on macOS and Windows

Windows system info:

Version: 1.110.0 (user setup)
Commit: 0870c2a0c7c0564e7631bfed2675573a94ba4455
Date: 2026-03-04T01:20:28.863Z
Electron: 39.6.0
ElectronBuildId: 13330601
Chromium: 142.0.7444.265
Node.js: 22.22.0
V8: 14.2.231.22-electron.0
OS: Windows_NT x64 10.0.26200

[anthonykim1]

Is debugger extension using executeCommand to send commands to the terminal?

Trying to send commands to the terminal before the prompt input model is ready could be triggering ^c.

We have a check in environment extension that goes through three conditions that prevents/mitigate this:
https://github.com/microsoft/vscode-python-environments/blob/d7473274e821a13a0f5bfdbbaa6fd4ebeb77489c/src/features/terminal/utils.ts#L46-L73

Debugger extension could do something similar.

[Xarkam]

I have the same problem; I'm getting Keyboard Interrupts that trigger even when I'm not pressing the correct key combination.

Here, I have a Python program in Qt6, and when I run my tests in it, a Keyboard Interrupt is triggered. What was I doing when it happened? Moving the program window.

(Note: on the picture, the traceback is triggered by the keyboardinterrupt.)

---

I also get Keyboard Interrupts when I type a command.

This issue appeared with VS Code version 1.110.

Version: 1.110.1 (user setup)
Commit: 61b3d0ab13be7dda2389f1d3e60a119c7f660cc3
Date: 2026-03-06T23:03:27.520Z
Electron: 39.6.0
ElectronBuildId: 13330601
Chromium: 142.0.7444.265
Node.js: 22.22.0
V8: 14.2.231.22-electron.0
OS: Windows_NT x64 10.0.26200

[josmithua]

Fixed in microsoft/vscode-python#25849

EDIT: Nevermind, still happening on Windows