How to debug underlying C++ library from Python interface?

Question

I am using apollocaffe and Reinspect. Apollocaffe is in c++ library and Reinspect is in python. Reinspect called apis from apollocaffe. I like to debug those apis inside apolloc

Answer 1

If you are interested to debug just the C++ part, you can just start GDB with Python -

gdb python
b 
run train.py

Of course you need to compile Caffe with debug information: pass -DDEBUG=1 to cmake options of uncomment the DEBUG = 1 line in your Makefile.config.
Debugging both Python and C++ from gdb might be more complicated, see this for example.