Fixing "clear" fault on SmartListBox

slightlynybbled · slightlynybbled · commit 1aac9ca089ba · 2020-05-29T12:50:06.000-04:00
diff --git a/tk_tools/widgets.py b/tk_tools/widgets.py
@@ -237,7 +237,11 @@ def _clear_selected(self):
             self._values.popitem()
 
         if self._on_select_callback is not None:
-            self._on_select_callback()
+            values = list(self._values.keys())
+            try:
+                self._on_select_callback(values)
+            except TypeError:
+                self._on_select_callback()
 
     def __on_select(self):
         value = self._lb.get('active')
