The robust module is accessible via the sqlobject.include.pydispatch module.
Send signal from sender to all connected receivers catching errors
signal -- (hashable) signal value, see connect for details
sender -- the sender of the signal
if Any, only receivers registered for Any will receive the message.
if Anonymous, only receivers registered to receive messages from Anonymous or Any will receive the message
Otherwise can be any python object (normally one registered with a connect if you actually want something to occur).
Return a list of tuple pairs [(receiver, response), ... ]
if any receiver raises an error (specifically any subclass of Exception), the error instance is returned as the result for that receiver.
See the source for more information.