from IPython.core.debugger import Tracer
Tracer()()
in tracer add module to sys path
sys.path.append('/Users/csxds/.virtualenvs/ipython/lib/python3.5/site-packages/excel_helper')
from excel_helper import helper
b helper:561
Check out the cheat sheet [https://github.com/nblock/pdb-cheatsheet/blob/master/pdb-cheatsheet.pdf]