Python custom error handler with lock

gistfile1.txt

class ErrorHandler (logging.Handler):
	def __init__(self):
		logging.Handler.__init__(self)
		self.lock = multiprocessing.Lock()
		self.errorLogMessages = list()
	def emit (self, record):
		print record
		self.lock.acquire()
		print "lock acquired"
		try:
			print "==================================="
			self.errorLogMessages.append(self.format(record))
			print ",".join(self.errorLogMessages)
		finally:
			self.lock.release()