Index: lib2to3/tests/test_fixers.py
===================================================================
--- lib2to3/tests/test_fixers.py	(revision 82529)
+++ lib2to3/tests/test_fixers.py	(revision 82530)
@@ -3670,7 +3670,11 @@
         a = "from itertools import bar, filterfalse, foo"
         self.check(b, a)
 
+    def test_import_star(self):
+        s = "from itertools import *"
+        self.unchanged(s)
 
+
     def test_unchanged(self):
         s = "from itertools import foo"
         self.unchanged(s)
Index: lib2to3/fixes/fix_itertools_imports.py
===================================================================
--- lib2to3/fixes/fix_itertools_imports.py	(revision 82529)
+++ lib2to3/fixes/fix_itertools_imports.py	(revision 82530)
@@ -20,6 +20,9 @@
             if child.type == token.NAME:
                 member = child.value
                 name_node = child
+            elif child.type == token.STAR:
+                # Just leave the import as is.
+                return
             else:
                 assert child.type == syms.import_as_name
                 name_node = child.children[0]