--- setupbase.py.orig
+++ setupbase.py
@@ -298,7 +298,7 @@ def find_entry_points():
             'iptest%s = IPython.testing.iptestcontroller:main',
         ]
     suffix = str(sys.version_info[0])
-    return [e % '' for e in ep] + [e % suffix for e in ep]
+    return [e % '' for e in ep]
 
 script_src = """#!{executable}
 # This script was automatically generated by setup.py