Mark the "radio" option of Tix.CheckList as static.
diff --git a/Lib/lib-tk/Tix.py b/Lib/lib-tk/Tix.py
index d2ede36..91b27f5 100755
--- a/Lib/lib-tk/Tix.py
+++ b/Lib/lib-tk/Tix.py
@@ -1548,7 +1548,7 @@
# FIXME: It should inherit -superclass tixTree
def __init__(self, master=None, cnf={}, **kw):
TixWidget.__init__(self, master, 'tixCheckList',
- ['options'], cnf, kw)
+ ['options', 'radio'], cnf, kw)
self.subwidget_list['hlist'] = _dummyHList(self, 'hlist')
self.subwidget_list['vsb'] = _dummyScrollbar(self, 'vsb')
self.subwidget_list['hsb'] = _dummyScrollbar(self, 'hsb')