step and next commands during pdb effectively quits the debugger

[rvinzent]

Overview

Setting the --pdb flag allows me to enter the debugger on error or failure, but when I am there, the debugger is essentially worthless. The most critical commands, s and n will just cause the debugger to exit completely and continue tests. up and down commands navigate the traceback, but the debugger will never step into the functions inside the traceback.

Setting the debugger manually inside the test works perfectly.

Versions

django 2.0.6
django_nose 1.4.9