How to enable debugging in Visual Studio Code on Windows

[Andrew Rogers]

Sorry for the dumb question...

I can debug other python apps fine. I have py4web launching from VS Code using the launch.json file described below. But my break points in the examples apps (in models.py and controllers.py)  are ignored. What am I missing?

My launch.json file looks like this:

    "configurations": [

        {

            "name": "py4web",

            "type": "python",

            "request": "launch",

            "python": "c:/Python39/python.exe",

            "program": "D:/Andrew/github/py4web/py4web.py",

            "args": ["run","D:/Andrew/github/py4web/apps"],

            "cwd": "${workspaceRoot}",            

            "console": "integratedTerminal",

            "justMyCode": true          

        }

    ]

[Nico Zanferrari]

Hi Andrew,

it works fine for me on Ubuntu. I've just tried and it's similar on Windows (installed locally from source), here is my launch.json file:

    "configurations": [

        {

            "name": "Python: Current File",

            "type": "python",

            "request": "launch",

            "program": "c:/users/nico/desktop/py4web/py4web.py",

            "console": "integratedTerminal",

            "args": ["run", "apps"]

        }

    ]

where I've just changed the program value and added the args one.

The resulting execution command is:

  & 'C:\Users\nico\AppData\Local\Programs\Python\Python38\python.exe' 'c:\Users\nico\.vscode\extensions\ms-python.python-2021.7.1060902895\pythonFiles\lib\python\debugpy\launcher' '50263' '--' 'c:/users/nico/desktop/py4web/py4web.py' 'run' 'apps'

Do you see your breakpoints on the lower left portion of the debug panel?

Can you also try to place one breakpoint on line 31 of apps/_dashboard/__init__.py ? It should be automatically risen at py4web startup.

Nico

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[Andrew Rogers]

Many thanks Nico. I think my problem was that I had the wrong folder open in VS Code. I had opened the 'apps' folder in VSC not the py4web folder.  I should have realised that that would be a problem because I got the 'apps' does not exist error when configured using "args": ["run","apps"]

Is this something that I could add to the documentation? I read through that (maybe not carefully enough) but perhaps it needs to be spelled out a little more explicitly for people like me.

[Jorge Salvat]

Hi,

I usually open the folder of the app I'm working on VSCode, but then my launch.json is:

"version": "0.2.0",

    "configurations": [

        {

            "name": "Python: Py4Web",

            "type": "python",

            "request": "launch",

            "program": "py4web.py",

            "cwd": "c:/wwwroot/py4web-master/",

            "args": [

                "run",

                "apps"

            ],

            "console": "integratedTerminal"

        }

    ]

Hope this helps!