Handle missing raw and retries on Response (#88)

Author: fatihkurtoglu

scaleapi/api.py

@@ -144,10 +144,10 @@ def _api_request(
                 # Some endpoints only return 'OK' message without JSON
                 return json
         elif res.status_code == 409 and "task" in endpoint and body.get("unique_id"):
-            retry_history = None
-            if "retries" in res.raw and "history" in res.raw.retries:
+            try:
                 retry_history = res.raw.retries.history
-
+            except AttributeError:
+                retry_history = []
             # Example RequestHistory tuple
             # RequestHistory(method='POST',
             #   url='/v1/task/imageannotation',