How to debug python script in C level using GDB. Give me a simple example for this

How to debug python script in C level using GDB. Give me a simple example for this.My primary goal is to get the trace of libc function called from my python script.

See the thing is for binary(.so) files, you surely cannot apply breakpoint to a particular line, but surely you can apply breakpoint to a function. Say using

(gdb) b func_name

you can easily apply breakpoint to a function and thereby obtain the backtrace whenever the breakpoint is found. First run your python sc

1. Start gdb:

   gdb -ex r --args python demo.py
   

2. Apply breakpoint:

   (gdb) b func_name
   

3. Run:

   (gdb) run
   

This should work for your case.