using ipdb to debug python code in one cell (jupyter or Ipython)

Question

I\'m using jupyter (or Ipython) notebook with firefox, and want to debug some python code in the cell. I am using \'import ipdb; ipdb.set_trace()\' as kind of breakpoint, fo

Answer 1

My version of Jupyter is 5.0.0 and my corresponding ipython version is 6.1.0. I am using

import IPython.core.debugger
dbg = IPython.core.debugger.Pdb()
dbg.set_trace()

Tracer is listed as deprecated.

Update:

I tried using the method from another answer https://stackoverflow.com/a/43086430/8019692 below but got an error:

MultipleInstanceError: Multiple incompatible subclass instances of TerminalIPythonApp are being created.

I prefer my method to the %%debug magic since I can set breakpoints in functions defined in other cells and run the function in another cell. Jupyter/IPython drops into the debugger in my function where the breakpoint is set, and I can use the usual pdb commands. To each his own...

@lugger1, the accepted answer is deprecated.