Open gdb's current line with TextWrangler

twgdb.py

import subprocess

edit = "/usr/local/bin/edit"
last_filename = None

def stop_handler(event):
	global last_filename
	line_info = gdb.decode_line()[1][0]
	window = "--new-window"
	if last_filename != None:
		try:
			command = [edit, "-b", last_filename]
			r = subprocess.call(command)
			if(r != 0): raise OSError(command)
			window = "--front-window"
		except OSError as e:
			print e.value
	last_filename = line_info.symtab.fullname()
	command = [edit, "-b", window,
	           last_filename + ":" + str(line_info.line)]
	try:
		r = subprocess.call(command)
		if(r != 0): raise OSError(command)
	except OSError as e:
		print e.value

gdb.events.stop.connect(stop_handler)