actions.py

from rasa_core_sdk import Action
from rasa_core_sdk.events import SlotSet

class ActionSearchBirthplace(Action):
    def name(self):
        return 'action_search_birthplace'

    def run(self, dispatcher, tracker, domain):
        import csv
        #dispatcher.utter_message("Searching for Birthplace")
        person = tracker.get_slot('physicist')
        actualBirthplace = None
        with open('birthplace.csv') as csvfile:
            spamreader = csv.DictReader(csvfile, delimiter=',')
            for row in spamreader:
                if row['Name'] == person:
                    actualBirthplace = row['Birthplace']
        if actualBirthplace is None:
            dispatcher.utter_message("Error: Birthplace of " + person + "not known.")
            return[SlotSet('matches', [])]
        return [SlotSet('matches', actualBirthplace if actualBirthplace is not None else [])]
        
        
class ActionSayBirthplace(Action):
    def name(self):
        return 'action_say_birthplace'

    def run(self, dispatcher, tracker, domain):
        person = tracker.get_slot('physicist')
        dispatcher.utter_message("The birthplace of " + person + " is " + tracker.get_slot('matches') + ".")
        return []