using ipdb for debugging python inside emacs

问题

import pdb; pdb.set_trace() works fine when I run M-x pdb
python manage.py runserver

However import ipdb would cause the above statement to hang indefinately..

I hear great things about ipdb, how do I use it under emacs?

• Edit

Just found out django has nothing to do with it, simple python file hangs as well.

来源：https://stackoverflow.com/questions/29425325/using-ipdb-for-debugging-python-inside-emacs