Return empty array instead of raising NoResultsError for missing results (#483)

* Return empty array instead of raising NoResultsError for missing results

Author: justinpolygon

docs/source/Exceptions.rst

@@ -17,10 +17,3 @@ BadResponse
     :members:
     :undoc-members:  
 
-==============================================================
-NoResultsError
-==============================================================
-.. autoclass:: polygon.exceptions.NoResultsError
-    :members:
-    :undoc-members:  
-

polygon/exceptions.py

@@ -12,11 +12,3 @@ class BadResponse(Exception):
     """
 
     pass
-
-
-class NoResultsError(Exception):
-    """
-    Missing results key
-    """
-
-    pass

polygon/rest/base.py

@@ -10,7 +10,7 @@
 from ..logging import get_logger
 import logging
 from urllib.parse import urlencode
-from ..exceptions import AuthError, BadResponse, NoResultsError
+from ..exceptions import AuthError, BadResponse
 
 logger = get_logger("RESTClient")
 version = "unknown"
@@ -116,11 +116,7 @@ def _get(
 
         if result_key:
             if result_key not in obj:
-                raise NoResultsError(
-                    f'Expected key "{result_key}" in response {obj}.'
-                    + "Make sure you have sufficient permissions and your request parameters are valid."
-                    + f"This is the url that returned no results: {resp.geturl()}"
-                )
+                return []
             obj = obj[result_key]
 
         if deserializer:
@@ -198,6 +194,8 @@ def _paginate_iter(
                 options=options,
             )
             decoded = self._decode(resp)
+            if result_key not in decoded:
+                return []
             for t in decoded[result_key]:
                 yield deserializer(t)
             if "next_url" in decoded: