Add method to search for an external guid

plexapi/library.py

@@ -1274,6 +1274,17 @@ def search(self, title=None, sort=None, maxresults=None, libtype=None,
             title=title, sort=sort, libtype=libtype, limit=limit, filters=filters, returnKwargs=True, **kwargs)
         return self._search(key, maxresults, container_start, container_size, **kwargs)
 
+    def searchGuid(self, guid):
+        """ Search the library for an external IMDB, TMDB, or TVDB ID.
+            Note: This search uses a PlexAPI operator so performance may be slow.
+            See :func:`~plexapi.library.LibrarySection.search`.
+
+            Parameters:
+                guid (str): The external guid to search for.
+                    Examples: IMDB ``imdb://tt0944947``, TMDB ``tmdb://1399``, TVDB ``tvdb://121361``.
+        """
+        return self.search(guid__id__iexact=guid)
+
     def _search(self, key, maxresults, container_start, container_size, **kwargs):
         """ Perform the actual library search and return the results. """
         results = []