pdb in subprocess

remote_pdb.py

#ref: http://stackoverflow.com/questions/4716533/how-to-attach-debugger-to-a-python-subproccess

import sys
import pdb

class ForkedPdb(pdb.Pdb):
    """A Pdb subclass that may be used
    from a forked multiprocessing child

    """
    def interaction(self, *args, **kwargs):
        _stdin = sys.stdin
        try:
            sys.stdin = file('/dev/stdin')
            pdb.Pdb.interaction(self, *args, **kwargs)
        finally:
            sys.stdin = _stdin

#Use it the same way you might use the classic Pdb:

ForkedPdb().set_trace()