diff --git a/openerp/addons/base/res/test/res_lang.py b/openerp/addons/base/res/test/res_lang.py
index 58963043ee6..dbfa64f2993 100644
--- a/openerp/addons/base/res/test/res_lang.py
+++ b/openerp/addons/base/res/test/res_lang.py
@@ -1,12 +1,6 @@
 import sys
 import openerp
 
-# TODO this loop will be exposed as open_openerp_namespace()
-# once trunk-cleaning-vmt is merged.
-for k, v in list(sys.modules.items()):
-        if k.startswith('openerp.') and sys.modules.get(k[8:]) is None:
-            sys.modules[k[8:]] = v
-
 import openerp.addons.base.res.res_lang as res_lang
 res_lang._group_examples()
 
diff --git a/openerp/conf/deprecation.py b/openerp/conf/deprecation.py
index 53be31b46f9..11399bef4fb 100644
--- a/openerp/conf/deprecation.py
+++ b/openerp/conf/deprecation.py
@@ -32,6 +32,7 @@ by the user to check if her code is future proof.
 # without the 'openerp.' prefix. E.g. openerp.osv.osv and osv.osv refer to the
 # same module.
 # Introduced around 2011.02.
-open_openerp_namespace = True
+# Change to False around 2013.02.
+open_openerp_namespace = False
 
 # vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
diff --git a/openerp/modules/loading.py b/openerp/modules/loading.py
index 638a40c9fa8..07e5c28a925 100644
--- a/openerp/modules/loading.py
+++ b/openerp/modules/loading.py
@@ -45,13 +45,6 @@ from openerp.modules.module import initialize_sys_path, \
 
 _logger = logging.getLogger(__name__)
 
-def open_openerp_namespace():
-    # See comment for open_openerp_namespace.
-    if openerp.conf.deprecation.open_openerp_namespace:
-        for k, v in list(sys.modules.items()):
-            if k.startswith('openerp.') and sys.modules.get(k[8:]) is None:
-                sys.modules[k[8:]] = v
-
 
 def load_module_graph(cr, graph, status=None, perform_checks=True, skip_modules=None, report=None):
     """Migrates+Updates or Installs all module nodes from ``graph``
@@ -268,8 +261,6 @@ def load_modules(db, force_demo=False, status=None, update_module=False):
     # It should be a method exposed by the pool.
     initialize_sys_path()
 
-    open_openerp_namespace()
-
     force = []
     if force_demo:
         force.append('demo')
diff --git a/openerp/service/__init__.py b/openerp/service/__init__.py
index c95e35d8252..bb37cf2cf4f 100644
--- a/openerp/service/__init__.py
+++ b/openerp/service/__init__.py
@@ -73,7 +73,6 @@ def start_internal():
     if start_internal_done:
         return
     openerp.netsvc.init_logger()
-    openerp.modules.loading.open_openerp_namespace()
 
     # Instantiate local services (this is a legacy design).
     openerp.osv.osv.start_object_proxy()
diff --git a/openerp/tools/config.py b/openerp/tools/config.py
index 71d1d015d91..bca0f8dc603 100644
--- a/openerp/tools/config.py
+++ b/openerp/tools/config.py
@@ -487,7 +487,6 @@ class configmanager(object):
             openerp.conf.server_wide_modules = ['web','web_kanban']
         if complete:
             openerp.modules.module.initialize_sys_path()
-            openerp.modules.loading.open_openerp_namespace()
 
     def _generate_pgpassfile(self):
         """
diff --git a/openerpcommand/initialize.py b/openerpcommand/initialize.py
index 34c188bd583..44fb084bd1e 100644
--- a/openerpcommand/initialize.py
+++ b/openerpcommand/initialize.py
@@ -17,8 +17,6 @@ def install_openerp(database_name, create_database_flag, module_names, install_d
 
     # Install the import hook, to import openerp.addons.<module>.
     openerp.modules.module.initialize_sys_path()
-    if hasattr(openerp.modules.loading, 'open_openerp_namespace'):
-        openerp.modules.loading.open_openerp_namespace()
 
     registry = openerp.modules.registry.RegistryManager.get(
         database_name, update_module=True, force_demo=install_demo_data)
diff --git a/openerpcommand/run_tests.py b/openerpcommand/run_tests.py
index 80e968b6fae..4000b227b90 100644
--- a/openerpcommand/run_tests.py
+++ b/openerpcommand/run_tests.py
@@ -120,7 +120,6 @@ def run(args):
 
     # Install the import hook, to import openerp.addons.<module>.
     openerp.modules.module.initialize_sys_path()
-    openerp.modules.loading.open_openerp_namespace()
 
     # Extract module, submodule from the command-line args.
     if args.module is None:
diff --git a/openerpcommand/uninstall.py b/openerpcommand/uninstall.py
index 9d5d93bda05..27e4e04002a 100644
--- a/openerpcommand/uninstall.py
+++ b/openerpcommand/uninstall.py
@@ -38,7 +38,6 @@ def run(args):
 
     # Install the import hook, to import openerp.addons.<module>.
     openerp.modules.module.initialize_sys_path()
-    openerp.modules.loading.open_openerp_namespace()
 
     registry = openerp.modules.registry.RegistryManager.get(
         args.database, update_module=False)