Even though test.support is an internal module, it is helpful to have a 2to3 fixer for the 'test_support' to 'support' rename.

My naive attempt to add a fix (see patch pasted below), worked for "from test import test_support" but not for "import test.test_support.


Index: Lib/lib2to3/fixes/fix_imports.py
===================================================================
--- Lib/lib2to3/fixes/fix_imports.py	(revision 83283)
+++ Lib/lib2to3/fixes/fix_imports.py	(working copy)
@@ -55,6 +55,7 @@
            'UserList' : 'collections',
            'urlparse' : 'urllib.parse',
            'robotparser' : 'urllib.robotparser',
+           'test.test_support' : 'test.support',
 }
 
 
Index: Lib/lib2to3/fixes/fix_renames.py
===================================================================
--- Lib/lib2to3/fixes/fix_renames.py	(revision 83283)
+++ Lib/lib2to3/fixes/fix_renames.py	(working copy)
@@ -11,6 +11,7 @@
 from ..fixer_util import Name, attr_chain
 
 MAPPING = {"sys":  {"maxint" : "maxsize"},
+           "test": {"test_support": "support"},
           }
 LOOKUP = {}