pydbg_eg.py

#!/usr/bin/env python

# need to hunt for this pydbg lib
# didn't see it in macports, or brew
from pydbg import *

def handler_breakpoint(pydbg):
    print '===================Dumping context'
    print pydbg.dump_context()
    return DBG_CONTINUE

dbg = pydbg()

# register breakpoint handler function
dbg.set_callback(EXCEPTION_BREAKPOINT, handler_breakpoint)

dbg.attach(int(sys.argv[1]))
dbg.bp_set(int(sys.argv[2], 16),"", 1)

dbg.debug_event_loop()