Bug fix

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@16396 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/wxPython/wxPython/lib/mvctree.py b/wxPython/wxPython/lib/mvctree.py
index 1853c04077250fd8d94d840d5f1cef5f815dda75..b00eaa3c094a3a6abac5913adea8a53da9a99953 100644 (file)
--- a/wxPython/wxPython/lib/mvctree.py
+++ b/wxPython/wxPython/lib/mvctree.py
@@ -37,13 +37,15 @@ class MVCTreeNode:
     screen placement, the actual data associated with it, and more. These are
     the nodes passed to all the other helper parts to do their work with.
     """
     screen placement, the actual data associated with it, and more. These are
     the nodes passed to all the other helper parts to do their work with.
     """

-    def __init__(self, data=None, parent = None, kids = [], x = 0, y = 0):
+    def __init__(self, data=None, parent = None, kids = None, x = 0, y = 0):

         self.x = 0
         self.y = 0
         self.projx = 0
         self.projy = 0
         self.parent = parent
         self.kids = kids
         self.x = 0
         self.y = 0
         self.projx = 0
         self.projy = 0
         self.parent = parent
         self.kids = kids

+        if self.kids is None:
+            self.kids = []

         self.data = data
         self.expanded = false
         self.selected = false
         self.data = data
         self.expanded = false
         self.selected = false