from polygon import RESTClient

def main():
key = "your api key"

# RESTClient can be used as a context manager to facilitate closing the underlying http session
# https://requests.readthedocs.io/en/master/user/advanced/#session-objects
with RESTClient(key) as client:
    resp = client.stocks_equities_daily_open_close("AAPL", "2018-03-02")
    print(f"On: {resp.from_} Apple opened at {resp.open} and closed at {resp.close}")

if name == 'main':
main()

KeyError Traceback (most recent call last)
in
13
14 if name == 'main':
---> 15 main()

in main()
8 # https://requests.readthedocs.io/en/master/user/advanced/#session-objects
9 with RESTClient(POLYGON_API_KEY) as client:
---> 10 resp = client.stocks_equities_daily_open_close("AAPL", "2018-03-02")
11 print(f"On: {resp.from_} Apple opened at {resp.open} and closed at {resp.close}")
12

~/anaconda3/envs/test/lib/python3.8/site-packages/polygon/rest/client.py in stocks_equities_daily_open_close(self, symbol, date, **query_params)
126 **query_params) -> models.StocksEquitiesDailyOpenCloseApiResponse:
127 endpoint = f"{self.url}/v1/open-close/{symbol}/{date}"
--> 128 return self._handle_response("StocksEquitiesDailyOpenCloseApiResponse", endpoint, query_params)
129
130 def stocks_equities_condition_mappings(self, ticktype,

~/anaconda3/envs/test/lib/python3.8/site-packages/polygon/rest/client.py in _handle_response(self, response_type, endpoint, params)
31 resp: requests.Response = self._session.get(endpoint, params=params, timeout=self.timeout)
32 if resp.status_code == 200:
---> 33 return unmarshal.unmarshal_json(response_type, resp.json())
34 else:
35 resp.raise_for_status()

~/anaconda3/envs/test/lib/python3.8/site-packages/polygon/rest/models/unmarshal.py in unmarshal_json(response_type, resp_json)
6 def unmarshal_json(response_type, resp_json) -> Type[models.AnyDefinition]:
7 obj = models.name_to_classresponse_type
----> 8 obj.unmarshal_json(resp_json)
9 return obj

~/anaconda3/envs/test/lib/python3.8/site-packages/polygon/rest/models/definitions.py in unmarshal_json(self, input_json)
22 return self
23 elif isinstance(input_json, dict):
---> 24 self._unmarshal_json_object(input_json)
25 return self
26 elif isinstance(input_json, float) or isinstance(input_json, int):

~/anaconda3/envs/test/lib/python3.8/site-packages/polygon/rest/models/definitions.py in _unmarshal_json_object(self, input_json)
40 if key in self._swagger_name_to_python:
41 attribute_name = self._swagger_name_to_python[key]
---> 42 if not self._attribute_is_primitive[attribute_name]:
43 if attribute_name in self._attributes_to_types:
44 attribute_type = self._attributes_to_types[attribute_name]

KeyError: 'after_hours'