How to debug a specific method in VS Code (not main) using python

Question

I have a method cli in mymodule which is the entrypoint for my programm. cli takes several keyword arguments. The module mymodule does not contain something like

if __name__ == "__main__":
    cli(...)

How do i specify a run-configuration for this?

I tried

{
        "name": "myentrypoint",
        "type": "debugpy",
        "request": "launch",
        "module": "mymodule.cli",
        "console": "integratedTerminal",
        "args": [
            "--arg1", "value1",
            "--arg2", "value2"
            ],
        "justMyCode": true
}

(as suggested in How to make VScode launch.json for a Python module)

This gives me

/home/xxxxxx/projects/myproject/.venv/bin/python: Error while finding module specification for 'mymodule.cli' (ModuleNotFoundError: __path__ attribute not found on 'mymodule' while trying to find 'mymodule.cli')

Normally I use this entrypoint using poetry like

[tool.poetry.scripts]
myentrypoint= 'mymodule:cli'

And then from the terminal poetry run myentrypoint --arg1 "value1" --arg2 "value2

But now I need to debug the program

why would vscode support some custom capability like that? if you don't want to add the main support into your module, then create a main.py and use that as your entrypoint. — toppk
– toppk, Commented Sep 23, 2024 at 10:08

MingJie-MSFT · Accepted Answer · 2024-09-24 01:45:20Z

0

You could try to set cli in args. It looks like:

{
        "name": "myentrypoint",
        "type": "debugpy",
        "request": "launch",
        "module": "mymodule",
        "console": "integratedTerminal",
        "args": [
            "cli",
            "--arg1", "value1",
            "--arg2", "value2"
            ],
        "justMyCode": true
}

answered Sep 24, 2024 at 1:45

MingJie-MSFT

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4 Comments

Raphael Roth Over a year ago

this is not working

MingJie-MSFT Over a year ago

Are there any error messages or logs when you try to run or debug your Python CLI method in VS Code?

Raphael Roth Over a year ago

It's doing the imports in the file (initialization code), but the method "cli" is not entered... die program just ends without doing anything

MingJie-MSFT Over a year ago

I suggest you create main.py as entrypoint which include from mymodule import cli if __name__ == "__main__": import sys cli(*sys.argv[1:])

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