Index: Lib/lib-tk/ScrolledText.py
===================================================================
--- Lib/lib-tk/ScrolledText.py	(revision 56266)
+++ Lib/lib-tk/ScrolledText.py	(working copy)
@@ -21,7 +21,7 @@
             cnf = _cnfmerge((cnf, kw))
         fcnf = {}
         for k in cnf.keys():
-            if isinstace(k, type) or k == 'name':
+            if isinstance(k, type) or k == 'name':
                 fcnf[k] = cnf[k]
                 del cnf[k]
         self.frame = Frame(master, **fcnf)