Ticket #3598: 1.patch

(a) a/deluge/ui/gtk3/preferences.py~ vs. (b) b/deluge/ui/gtk3/preferences.py

@@ -30 +30 @@
 from .path_chooser import PathChooser
 
 try:
-    require_version('AppIndicator3', '0.1')
-    from gi.repository import AppIndicator3  # noqa: F401
+    try:
+        require_version('AyatanaAppIndicator3', '0.1')
+        from gi.repository import AyatanaAppIndicator3 as AppIndicator3
+    except (ValueError, ImportError):
+        require_version('AppIndicator3', '0.1')
+        from gi.repository import AppIndicator3  # noqa: F401
 except (ImportError, ValueError):
     appindicator = False
 else: