How to send a dictionary through params webapp2 python?
To access the trip dictionary you would need to use:
class CreateMediaPostTaskHandler(webapp2.RequestHandler):
    def post(self):
        params = self.request.params
        start_address_city = params['trip[startAddress][city]']
I have a dictionary in Swift like so:
let params : [String : Any] =
["user_key": "ag1kZXZ-Z29hbC1yaXNlchELEgRVc2VyGICAgICAgIAKDA", 
 "post_text": "Lol", 
 "trip": ["posted_by": "", 
         "endAddress": "", 
         "post_text": "Lol", 
         "startAddress": ["state": "IL", 
                          "city": "Oak Park", 
                          "address1": "6503 West North Avenue", 
                          "address2": "", "zipCode": ""], 
         "time": "", 
         "role": "", 
         "eta": ""]]
When I send this in the params object of Alamofire, the webapp2 accesses the params by self.request.get('user_key') and so forth, however, it does not get the 'trip' parameter. ```self.request.get('trip') returns nothing. 
How do I send this dictionary to webapp2 Request Handler?