TypeError: 'SlotSet' object is not subscriptable

Rasa Open Source
1

Dear Team,

I am getting error as TypeError: ‘SlotSet’ object is not subscriptable when running rasa core interpreter with curstom action.

Error log:

ERROR:flask.app:Exception on /webhook [POST] Traceback (most recent call last): File “/home/ajontanu/jon/my_work/chatbot3/chatbot3/lib/python3.6/site-packages/flask/app.py”, line 2292, in wsgi_app response = self.full_dispatch_request() File “/home/ajontanu/jon/my_work/chatbot3/chatbot3/lib/python3.6/site-packages/flask/app.py”, line 1815, in full_dispatch_request rv = self.handle_user_exception(e) File “/home/ajontanu/jon/my_work/chatbot3/chatbot3/lib/python3.6/site-packages/flask_cors/extension.py”, line 161, in wrapped_function return cors_after_request(app.make_response(f(*args, **kwargs))) File “/home/ajontanu/jon/my_work/chatbot3/chatbot3/lib/python3.6/site-packages/flask/app.py”, line 1718, in handle_user_exception reraise(exc_type, exc_value, tb) File “/home/ajontanu/jon/my_work/chatbot3/chatbot3/lib/python3.6/site-packages/flask/_compat.py”, line 35, in reraise raise value File “/home/ajontanu/jon/my_work/chatbot3/chatbot3/lib/python3.6/site-packages/flask/app.py”, line 1813, in full_dispatch_request rv = self.dispatch_request() File “/home/ajontanu/jon/my_work/chatbot3/chatbot3/lib/python3.6/site-packages/flask/app.py”, line 1799, in dispatch_request return self.view_functionsrule.endpoint File “/home/ajontanu/jon/my_work/chatbot3/chatbot3/lib/python3.6/site-packages/flask_cors/decorator.py”, line 128, in wrapped_function resp = make_response(f(*args, **kwargs)) File “/home/ajontanu/jon/my_work/chatbot3/chatbot3/lib/python3.6/site-packages/rasa_core_sdk/endpoint.py”, line 83, in webhook response = executor.run(action_call) File “/home/ajontanu/jon/my_work/chatbot3/chatbot3/lib/python3.6/site-packages/rasa_core_sdk/executor.py”, line 177, in run events = action(dispatcher, tracker, domain) File “/home/ajontanu/jon/my_work/chatbot3/chatbot3/lib/python3.6/site-packages/rasa_core_sdk/forms.py”, line 388, in run if e[‘event’] == ‘slot’: TypeError: ‘SlotSet’ object is not subscriptable

Custom Action file:

    def validate(self, dispatcher:CollectingDispatcher, tracker: Tracker,
             domain: Dict[Text, Any]) -> List[Dict]:

    "Validate extracted requested slot else raise an error"

    # extract slots that are not requested but set by corresponding entity
    slot_values = self.extract_other_slots(dispatcher, tracker, domain)

    #extract requested slot
    slot_to_fill = tracker.get_slot(REQUESTED_SLOT)


    if slot_to_fill:
        slot_values.update(self.extract_requested_slot(dispatcher, tracker, domain))

        if not slot_values:
            raise ActionExecutionRejection(self.name(),
                                           "Failed to validate slot {0}"
                                           "with action {1}"
                                           "".format(slot_to_fill, self.name))


    for slot, value in slot_values.items():
        print(slot)
        print(value)
        if slot_values[slot] == 'gender':
            if value.lower() not in self.gender_db():
                dispatcher.utter_template('utter_wrong_gender', tracker)

                slot_values[slot] = None


    return [SlotSet(slot, value) for slot, value in slot_values.items()]
2

Hi @ajt,

First of all, I’m not sure what this form is doing, but is the line

if slot_values[slot] == 'gender':

supposed to be

if slot == 'gender':

?

As for the TypeError, can you show me your imports please? Is this the only custom code you have written?

3

This question was also asked here. So if you find the solution, give some updates in the issue TypeError: ‘SlotSet’ object is not subscriptable · Issue #1407 · RasaHQ/rasa_core · GitHub

4

which import for SlotSet do you use?