Single-stepping through third-party libraries during debugging is not possible

[devymex]

Type: Bug

Behaviour

When justmycode is enabled, When justmycode is enabled, single-stepping through third-party libraries during debugging is not possible.

When I press F11 from my program to step into a third-party library, the current cursor indicator (yellow arrow) remains pointing to the call line in my program. A green arrow appears next to the actual current line in the called position within the third-party library. At this point, the CALL STACK window still shows the current module as being in my program. Even if I click on the third-party library module (which is at the top of the stack), I cannot 'activate' the current line in the third-party library module (the green arrow does not turn yellow). This issue prevents me from continuously stepping through the third-party library code with F10, forcing me to switch back and forth between my files and the third-party library code files, significantly impacting development efficiency.

Steps to reproduce:

1. My launch.json:

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "debugpy",
            "type": "debugpy",
            "request": "launch",
            "program": "test.py",
            "console": "integratedTerminal",
            "cwd": "${workspaceFolder}",
            "env": {
                "PYTHONPATH": "${cwd}"
            },
            "justMyCode": false
        }
    ]
}

My code:

import numpy as np
from PIL import Image

img = Image.open('test.jpg')
print(img)

Extension version: 2024.6.0
VS Code version: Code 1.90.0 (89de5a8d4d6205e5b11647eb6a74844ca23d2573, 2024-06-04T19:43:07.605Z)
OS version: Linux x64 5.19.0-41-generic
Modes:
Remote OS version: Linux x64 5.4.119-19.0009.28

• Python version (& distribution if applicable, e.g. Anaconda): 3.11.9
• Type of virtual environment used (e.g. conda, venv, virtualenv, etc.): VirtualEnvironment

System Info

Item	Value
CPUs	11th Gen Intel(R) Core(TM) i9-11950H @ 2.60GHz (16 x 800)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: disabled_off 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 video_decode: enabled video_encode: disabled_software vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: disabled_off
Load (avg)	1, 1, 1
Memory (System)	31.06GB (24.93GB free)
Process Argv	--crash-reporter-id 681870e4-3d75-4e81-a92c-21878a28d682
Screen Reader	no
VM	0%
DESKTOP_SESSION	ubuntu
XDG_CURRENT_DESKTOP	Unity
XDG_SESSION_DESKTOP	ubuntu
XDG_SESSION_TYPE	x11

Item	Value
Remote	SSH: h800-tc-39
OS	Linux x64 5.4.119-19.0009.28
CPUs	Intel(R) Xeon(R) Platinum 8480+ (200 x 0)
Memory (System)	1877.99GB (1710.75GB free)
VM	0%

A/B Experiments

vsliv368cf:30146710
vspor879:30202332
vspor708:30202333
vspor363:30204092
vscod805cf:30301675
binariesv615:30325510
vsaa593cf:30376535
py29gd2263:31024239
c4g48928:30535728
azure-dev_surveyone:30548225
962ge761:30959799
pythongtdpath:30769146
welcomedialogc:30910334
pythonidxpt:30866567
pythonnoceb:30805159
asynctok:30898717
pythontestfixt:30902429
pythonregdiag2:30936856
pythonmypyd1:30879173
pythoncet0:30885854
h48ei257:31000450
pythontbext0:30879054
accentitlementst:30995554
dsvsc016:30899300
dsvsc017:30899301
dsvsc018:30899302
cppperfnew:31000557
dsvsc020:30976470
pythonait:31006305
jchc7451:31067544
showvideoc:31016891
chatpanelc:31048052
dsvsc021:30996838
f3je6385:31013174
pythoncenvpt:31062603
a69g1124:31058053
dvdeprecation:31068756
pythonprt:31056678
dwnewjupyter:31046869
2f103344:31067618
26j00206:31048877

[simone-viozzi]

Same issue here,
is there a workaround?

[BrunoCoimbra]

Is it the same as #357?

[devymex]

Is it the same as #357?

Yes, but it looks like a bug of vscode rather than vscode-python-debugger or debugpy: microsoft/vscode#214433

[paulacamargo25]

Issue solved in microsoft/vscode#214433.