[reddit] fix errors with 't1_…' submissions

gallery_dl/extractor/reddit.py

@@ -60,6 +60,8 @@ class RedditExtractor(Extractor):
 
     def _urls(self, submissions):
         for submission, comments in submissions:
+
+            if submission:
                 self._visited.add(submission["id"])
 
                 if not submission["is_self"]:
@@ -298,17 +300,24 @@ class RedditAPI():
         while True:
             data = self._call(endpoint, params)["data"]
 
-            for submission in data["children"]:
+            for child in data["children"]:
-                submission = submission["data"]
+                kind = child["kind"]
-                if (date_min <= submission["created_utc"] <= date_max and
+                post = child["data"]
-                        id_min <= self._decode(submission["id"]) <= id_max):
+
-                    if submission["num_comments"] and self.comments:
+                if (date_min <= post["created_utc"] <= date_max and
+                        id_min <= self._decode(post["id"]) <= id_max):
+
+                    if kind == "t3":
+                        if post["num_comments"] and self.comments:
                             try:
-                            yield self.submission(submission["id"])
+                                yield self.submission(post["id"])
                             except exception.AuthorizationError:
                                 pass
                         else:
-                        yield submission, None
+                            yield post, None
+
+                    elif kind == "t1" and self.comments:
+                        yield None, (post,)
 
             if not data["after"]:
                 return