diff -r 7f643d41464e -r f904d0eef264 eric6/E5Gui/E5TreeWidget.py
--- a/eric6/E5Gui/E5TreeWidget.py Wed Jun 17 17:12:21 2020 +0200
+++ b/eric6/E5Gui/E5TreeWidget.py Wed Jun 17 20:18:54 2020 +0200
@@ -48,9 +48,11 @@
Public method to set the default item show mode.
@param mode default mode (ItemsCollapsed, ItemsExpanded)
+ @exception ValueError raised to indicate a bad parameter value
"""
- assert mode in [E5TreeWidget.ItemsCollapsed,
- E5TreeWidget.ItemsExpanded]
+ if mode not in [E5TreeWidget.ItemsCollapsed,
+ E5TreeWidget.ItemsExpanded]:
+ raise ValueError("Bad value for 'mode' parameter.")
self.__showMode = mode
