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.akhiya...@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
>>
>> www.quantconnect.com
>> Phone-USA: +1 917 327 0556
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>>
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>
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