Hello,

I currently work on a project which uses a library written in C++ which can be used in Python with pybind11. To debug the C++ code, I currently use ipython together with lldb. Which works as follows:

• Start ipython and get the process id with !ps aux | grep -i ipython
• Start lldb in another terminal and connect to ipyhton with attach --pid $PID and continue
• Set a breakpoint in lldb to a class method, e.g. breakpoint -n Cat::purr
• In ipython launch the Python script with run examples/example.py
• Now lldb breaks at the breakpoint and I can step through the code in lldb which is possible but also a bit tedious.

Is there a way to set a breakpoint through nvim-dap in C++ and then launch the Python script through nvim-dap-python and have it recognize the C++ breakpoint when running the Python script?

PS:
I prepared a little example project https://github.com/k0nze/nvim_cpp_python_debugging which can be set up as follows:

cd $REPO_DIR
python -m venv .venv
source .venv/bin/activate
python -m pip install .

An example which instantiates the C++ classes in Python can be run with:

python examples/example.py

The C++ file in which I would like to set a breakpoint in is located under:

src/backend/cat.cc

Additionally, I added a minimal nvim config which installs plugins into a temporary directory which can be launched with:

nvim -lu minimal.lua

If the plugins don't install automatically, you can use :PackerSync

When started you can launch nvim-dap with nvim-dap-ui with [SPACE]+[d] and use the usual commands for setting breakpoints, and stepping though code.

Thank you in advance!