How to set breakpoints in a library module (pdb)

Question

I am debugging a python script which sys.path looks like

sys.path = [\'\',\'home/my_library\', ..]

I\'m having troubles to set a breakpoint

Answer 1

You qualify the breakpoints with the filename, not the object name:

>>> import pdb
>>> import artwork  # module we want to break inside
>>> pdb.set_trace()
--Return--
> (1)()->None
(Pdb) b artwork/models.py:1
Breakpoint 1 at /home/user/projects/artwork/models.py:1

See also this answer.