Hi pythonnet team, I followed your tutorials ( https://github.com/pythonnet/ pythonnet/wiki/Various-debugging-scenarios-of-embedded-CPython) and I could test two out of three scenarios (I couldn't get ptvsd to work). When I tested it on Lean, I've verified that we don't get much information with the mixed-mode cross-language debugger, so I extended your example with a mock Lean algorithm: https://github.com/QuantConnect/pythonnet/tree/debug First scenario - mixed-mode cross-language debugger (attached file: mixeddebugger.png): The debugger doesn't give us the information about the object if we click/mounse over on it or inspect it in Locals/Watch. We need to know what attributes it has to access them in "Immediate Window". Second scenario - python debugger (attached file: pythondebugger.png): The debugger does show the information. The issue with the python debugger is that as we are using threads in Lean, we need to detach and reattach on every iteration in this code snippet the emulates the OnData call: Task.Factory.StartNew(() => { algorithm.Run(); }).ContinueWith((ant) => { algorithm.Initialize(); }).ContinueWith((ant) => { algorithm.OnData(DateTime.UtcNow.ToString()); algorithm.OnData(DateTime.UtcNow.ToString()); algorithm.OnData(DateTime.UtcNow.ToString()); }).Wait(); I have tried to attach the debugger in different places in the python script. If I call it in module level, breakpoints are never hit in the algorithm. If I call it in Initialize, only breakpoints in Initialize are hit. And finally, if I call it in OnData, I need to detach and reattach on every OnData call from the block above. Best regards, Alex On Wed, Jul 25, 2018 at 12:13 AM, Denis Akhiyarov <denis.akhiyarov@gmail.com

wrote:

I wrote a debugging tutorial using PTVS here and further improvements are welcome!

https://github.com/pythonnet/pythonnet/wiki/Various-debuggin g-scenarios-of-embedded-CPython

On Tue, Jul 10, 2018, 2:13 AM Jared Broad via PythonDotNet < pythondotnet@python.org> wrote:

...

Hello PythonNet

Do you have any tips/experiences/tools for allowing debugging for a C#-pythonnet script?

Thank you Jared

-- Jared Broad

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