return ParseBatchError with list of errors when a batch operation fails

parse_rest/connection.py

@@ -189,10 +189,10 @@ class ParseBatcher(ParseBase):
             if "success" in response:
                 callback(response["success"])
             else:
-                batched_errors.append(core.ParseError(response["error"]))
+                batched_errors.append(response["error"])
 
         if batched_errors:
-            raise batched_errors[0]
+            raise core.ParseBatchError(batched_errors)
 
     def batch_save(self, objects):
         """save a list of objects in one operation"""

parse_rest/core.py

@@ -16,6 +16,9 @@ class ParseError(Exception):
     '''Base exceptions from requests made to Parse'''
     pass
 
+class ParseBatchError(Exception):
+    ''' Error in batching operation... should take a list. '''
+    pass
 
 class ResourceRequestBadRequest(ParseError):
     '''Request returns a 400'''