Merge pull request #82 from reddit/fix_exception_logging

Log exceptions as str

Author: wuyiqicc

reddit_decider/__init__.py

@@ -347,10 +347,10 @@ def get_variant(
         try:
             decision = self._internal.choose(experiment_name, ctx)
         except FeatureNotFoundException as exc:
-            warnings.warn(exc)
+            warnings.warn(str(exc))
             return None
         except DeciderException as exc:
-            logger.info(exc)
+            logger.info(str(exc))
             return None
 
         event_context_fields = self._decider_context.to_event_dict()
@@ -385,10 +385,10 @@ def get_variant_without_expose(self, experiment_name: str) -> Optional[str]:
         try:
             decision = self._internal.choose(experiment_name, ctx)
         except FeatureNotFoundException as exc:
-            warnings.warn(exc)
+            warnings.warn(str(exc))
             return None
         except DeciderException as exc:
-            logger.info(exc)
+            logger.info(str(exc))
             return None
 
         event_context_fields = self._decider_context.to_event_dict()