[Python] Attaching a VSCode Debugger to a Sub Process in Python

I have a script that effectively does the following:

top_script.py:

os.system("bash_script.sh")


bash_script.sh

python3 child_script.py


child_script.py

# Actual work goes here


In VSCode, I love the integrated debugger, but when I follow their advice[1] when launching from the IDE, I get "ECONNREFUSED 127.0.0.1:5678".

When I execute the following from the integrated terminal in VSCode, it runs without the errors, but it doesn't stop on breakpoints in child_script.py.

python3 -m debugpy --listen 5678 top_script.py


How can I execute the top script first (either from the IDE or command line) and have breakpoints I attach in child_script.py be rendered in VSCode?

[1] https://code.visualstudio.com/docs/python/debugging

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