Bug fix for issue #30

CHANGES.rst

@@ -3,6 +3,8 @@ Change Log
 
 dev
 ------------------
+* Add `redditor_subreddit_activity` convenience method
+  --> Needs demo in README
 * Fixed bug that blocked backoff on request issued to determine current rate limit when
   a new psaw instance is created.
 

psaw/PushshiftAPI.py

@@ -276,6 +276,8 @@ class PushshiftAPI(PushshiftAPIMinimal):
             gen = [self._get_submission_comment_ids(**kwargs)]
 
         for batch in gen:
+            if not batch:
+                return
             if using_gsci:
                 fullnames = [prefix + base36id for base36id in batch]
             else: