pdb debug decorator

pdb_on_error.py

from functools import wraps
import sys
import pdb
import traceback

def pdb_on_error(func):
    @wraps(func)
    def pdbd(*args, **kwargs):
        try:
            func(*args, **kwargs)
        except Exception, e:
            print '\n' + '=' * 30 + ' pdb_on_error ' + '=' * 30
            traceback.print_exc(file=sys.stdout)
            pdb.Pdb(stdin=sys.__stdin__, stdout=sys.__stdout__).set_trace()
    return pdbd

# Example usage:
@pdb_on_error
def method_that_throws():
    x = {}
    x['foo']