Fix: Bug introduced in #1373 list has not attr tag (#1396)

* regression test for Taxel/PlexTraktSync#1901

* bugfix Taxel/PlexTraktSync#1901

Author: Dr-Blank

plexapi/base.py

@@ -347,7 +347,7 @@ def findItems(self, data, cls=None, initpath=None, rtag=None, **kwargs):
             kwargs['type'] = cls.TYPE
         # rtag to iter on a specific root tag using breadth-first search
         if rtag:
-            data = next(utils.iterXMLBFS(data, rtag), [])
+            data = next(utils.iterXMLBFS(data, rtag), Element('Empty'))
         # loop through all data elements to find matches
         items = MediaContainer[cls](self._server, data, initpath=initpath) if data.tag == 'MediaContainer' else []
         for elem in data:

tests/test_fetch_items.py

@@ -1,3 +1,5 @@
+from xml.etree.ElementTree import Element
+
 from plexapi.audio import Track
 from plexapi.base import MediaContainer
 
@@ -30,3 +32,10 @@ def test_fetch_items_with_media_container(show):
     assert some_episodes.size == 2
     assert some_episodes.offset == 0
     assert some_episodes.totalSize == len(all_episodes)
+
+
+def test_find_items_empty_data(plex):
+    result = plex.findItems(Element(""), rtag="foo")
+    assert len(result) == 0
+    result = plex.findItems(Element("MediaContainer"))
+    assert isinstance(result, MediaContainer)