FreeCAD

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import debugpy
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from multiprocessing.connection import Listener
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from freecad.utils import get_python_exe
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# get_python_exe is needed because debugpy needs a python interpreter to work.
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# It does not have to be FC embedded interpreter.
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# By default it attempts to use Freecad's PID mistaking it for python.
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# https://github.com/microsoft/debugpy/issues/262
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debugpy.configure(python=get_python_exe())
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debugpy.listen(('localhost', 5678))
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# Turns out you cannot probe debugpy to see if it is up:
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# https://github.com/microsoft/debugpy/issues/974
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# Open another port that the script WaitForDebugpy can probe to see if 
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# debugpy is running
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listener = Listener(('localhost', 6000), backlog=10)
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debugpy.wait_for_client()
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