def sendExact( signal=Any, sender=Anonymous, *arguments, **named ):
    """Send signal only to those receivers registered for exact message

    sendExact allows for avoiding Any/Anonymous registered
    handlers, sending only to those receivers explicitly
    registered for a particular signal on a particular
    sender.
    """
    responses = []
    for receiver in liveReceivers(getReceivers(sender, signal)):
        response = robustapply.robustApply(
            receiver,
            signal=signal,
            sender=sender,
            *arguments,
            **named
        )
        responses.append((receiver, response))
    return responses
Send signal only to those receivers registered for exact message

    sendExact allows for avoiding Any/Anonymous registered
    handlers, sending only to those receivers explicitly
    registered for a particular signal on a particular
    sender.
    
stackoverflow/venv/lib/python3.6/site-packages/pydispatch/dispatcher.py