diff --git a/nimbus/src/PyNimbus.cpp b/nimbus/src/PyNimbus.cpp
new file mode 100644
index 00000000..71b8959e
--- /dev/null
+++ b/nimbus/src/PyNimbus.cpp
@@ -0,0 +1,90 @@
+
+// -*- C++ -*-
+//
+// This file is part of the Coriolis Software.
+// Copyright (c) UPMC/LIP6 2012-2012, All Rights Reserved
+//
+// +-----------------------------------------------------------------+ 
+// |                   C O R I O L I S                               |
+// |      N i m b u s  -  Global Routing Framework                   |
+// |                                                                 |
+// |  Author      :                    Jean-Paul CHAPUT              |
+// |  E-mail      :       Jean-Paul.Chaput@asim.lip6.fr              |
+// | =============================================================== |
+// |  C++ Module  :       "./PyNimbus.cpp"                           |
+// +-----------------------------------------------------------------+
+
+
+#include "hurricane/isobar/PyHurricane.h"
+#include "hurricane/isobar/PyCell.h"
+#include "nimbus/PyNimbusEngine.h"
+
+
+namespace Nimbus {
+
+  using std::cerr;
+  using std::endl;
+  using Hurricane::tab;
+  using Hurricane::in_trace;
+  using Isobar::__cs;
+  using CRL::PyTypeToolEngine;
+
+
+#if !defined(__PYTHON_MODULE__)
+
+// x=================================================================x
+// |               "PyNimbus" Shared Library Code Part               |
+// x=================================================================x
+
+
+# else // End of PyHurricane Shared Library Code Part.
+
+
+// x=================================================================x
+// |                "PyNimbus" Python Module Code Part               |
+// x=================================================================x
+
+
+extern "C" {
+
+
+  // x-------------------------------------------------------------x
+  // |                 "PyNimbus" Module Methods                   |
+  // x-------------------------------------------------------------x
+
+
+  static PyMethodDef PyNimbus_Methods[] =
+    { {NULL, NULL, 0, NULL}     /* sentinel */
+    };
+
+
+
+
+  // ---------------------------------------------------------------
+  // Module Initialization  :  "initNimbus ()"
+
+  DL_EXPORT(void) initNimbus () {
+    trace << "initNimbus()" << endl;
+
+    PyNimbusEngine_LinkPyType ();
+
+    PYTYPE_READY_SUB ( NimbusEngine, ToolEngine );
+
+
+    PyObject* module = Py_InitModule ( "Nimbus", PyNimbus_Methods );
+    if ( module == NULL ) {
+      cerr << "[ERROR]\n"
+           << "  Failed to initialize Nimbus module." << endl;
+      return;
+    }
+
+    Py_INCREF ( &PyTypeNimbusEngine );
+    PyModule_AddObject ( module, "NimbusEngine", (PyObject*)&PyTypeNimbusEngine );
+  }
+
+  
+} // End of extern "C".
+
+#endif // End of Python Module Code Part.
+
+}  // End of Nimbus namespace.
diff --git a/nimbus/src/PyNimbusEngine.cpp b/nimbus/src/PyNimbusEngine.cpp
new file mode 100644
index 00000000..f12fb675
--- /dev/null
+++ b/nimbus/src/PyNimbusEngine.cpp
@@ -0,0 +1,127 @@
+
+// -*- C++ -*-
+//
+// This file is part of the Coriolis Software.
+// Copyright (c) UPMC/LIP6 2010-2012, All Rights Reserved
+//
+// +-----------------------------------------------------------------+ 
+// |                   C O R I O L I S                               |
+// |      N i m b u s  -  Global Routing Framework                   |
+// |                                                                 |
+// |  Author      :                    Jean-Paul CHAPUT              |
+// |  E-mail      :       Jean-Paul.Chaput@asim.lip6.fr              |
+// | =============================================================== |
+// |  C++ Module  :  "./PyNimbusEngine.cpp"                          |
+// +-----------------------------------------------------------------+
+
+
+#include "hurricane/isobar/PyCell.h"
+#include "hurricane/Cell.h"
+#include "nimbus/PyNimbusEngine.h"
+
+# undef   ACCESS_OBJECT
+# undef   ACCESS_CLASS
+# define  ACCESS_OBJECT            _baseObject._object
+# define  ACCESS_CLASS(_pyObject)  &(_pyObject->_baseObject)
+#define   METHOD_HEAD(function)    GENERIC_METHOD_HEAD(NimbusEngine,nimbus,function)
+
+
+namespace  Nimbus {
+
+  using std::cerr;
+  using std::endl;
+  using std::hex;
+  using std::ostringstream;
+  using Hurricane::tab;
+  using Hurricane::in_trace;
+  using Hurricane::Error;
+  using Hurricane::Warning;
+  using Isobar::ProxyProperty;
+  using Isobar::ProxyError;
+  using Isobar::ConstructorError;
+  using Isobar::HurricaneError;
+  using Isobar::HurricaneWarning;
+  using Isobar::ParseOneArg;
+  using Isobar::ParseTwoArg;
+  using Isobar::PyCell;
+  using Isobar::PyCell_Link;
+  using CRL::PyToolEngine;
+
+
+extern "C" {
+
+#if defined(__PYTHON_MODULE__)
+
+
+// +=================================================================+
+// |           "PyNimbusEngine" Python Module Code Part              |
+// +=================================================================+
+
+
+  static PyObject* PyNimbusEngine_create ( PyObject*, PyObject* args )
+  {
+    trace << "PyNimbusEngine_create()" << endl;
+
+    NimbusEngine* nimbus = NULL;
+    
+    HTRY
+    PyObject* arg0;
+
+    if (not ParseOneArg("Nimbus.create", args, CELL_ARG, &arg0)) return NULL;
+
+    Cell* cell = PYCELL_O(arg0);
+    nimbus = NimbusEngine::get(cell);
+
+    if (nimbus == NULL) {
+      nimbus = NimbusEngine::create(cell);
+      if (cmess1.enabled())
+        nimbus->getConfiguration()->print(cell);
+    } else
+      cerr << Warning("%s already has a Nimbus engine.",getString(cell).c_str()) << endl;
+    HCATCH
+
+    return PyNimbusEngine_Link(nimbus);
+  }
+
+
+  // Standart Accessors (Attributes).
+  DirectVoidMethod(NimbusEngine,nimbus,printConfiguration)
+
+  // Standart Destroy (Attribute).
+  DBoDestroyAttribute(PyNimbusEngine_destroy,PyNimbusEngine)
+
+
+  PyMethodDef PyNimbusEngine_Methods[] =
+    { { "create"            , (PyCFunction)PyNimbusEngine_create            , METH_VARARGS|METH_STATIC
+                            , "Create a Nimbus engine on this cell." }
+    , { "printConfiguration", (PyCFunction)PyNimbusEngine_printConfiguration, METH_NOARGS
+                            , "Display on the console the configuration of Nimbus." }
+    , { "destroy"           , (PyCFunction)PyNimbusEngine_destroy           , METH_NOARGS
+                            , "Destroy the associated hurricane object. The python object remains." }
+    , {NULL, NULL, 0, NULL} /* sentinel */
+    };
+
+
+  DBoDeleteMethod(NimbusEngine)
+  PyTypeObjectLinkPyType(NimbusEngine)
+
+
+#else  // End of Python Module Code Part.
+
+
+// +=================================================================+
+// |            "PyNimbusEngine" Shared Library Code Part            |
+// +=================================================================+
+
+
+  // Link/Creation Method.
+  PyTypeInheritedObjectDefinitions(NimbusEngine,PyToolEngine)
+  DBoLinkCreateMethod(NimbusEngine)
+
+
+#endif  // End of Shared Library Code Part.
+
+}  // End of extern "C".
+
+}  // End of Nimbus namespace.
+ 
diff --git a/nimbus/src/nimbus/PyNimbusEngine.h b/nimbus/src/nimbus/PyNimbusEngine.h
new file mode 100644
index 00000000..0883a687
--- /dev/null
+++ b/nimbus/src/nimbus/PyNimbusEngine.h
@@ -0,0 +1,58 @@
+
+// -*- C++ -*-
+//
+// This file is part of the Coriolis Software.
+// Copyright (c) UPMC/LIP6 2010-2012, All Rights Reserved
+//
+// +-----------------------------------------------------------------+ 
+// |                   C O R I O L I S                               |
+// |      N i m b u s  -  Global Routing Framework                   |
+// |                                                                 |
+// |  Author      :                    Jean-Paul CHAPUT              |
+// |  E-mail      :       Jean-Paul.Chaput@asim.lip6.fr              |
+// | =============================================================== |
+// |  C++ Header  :  "./nimbus/PyNimbusEngine.cpp"                   |
+// +-----------------------------------------------------------------+
+
+
+#ifndef __PY_NIMBUS_ENGINE__
+#define __PY_NIMBUS_ENGINE__
+
+#include "hurricane/isobar/PyHurricane.h"
+#include "crlcore/PyToolEngine.h"
+#include "nimbus/NimbusEngine.h"
+
+
+namespace  Nimbus {
+
+extern "C" {
+
+
+// -------------------------------------------------------------------
+// Python Object  :  "PyNimbusEngine".
+
+  typedef struct {
+      CRL::PyToolEngine  _baseObject;
+  } PyNimbusEngine;
+
+
+// -------------------------------------------------------------------
+// Functions & Types exported to "PyNimbus.ccp".
+
+  extern  PyTypeObject  PyTypeNimbusEngine;
+  extern  PyMethodDef   PyNimbusEngine_Methods[];
+
+  extern  PyObject* PyNimbusEngine_Link       ( Nimbus::NimbusEngine* );
+  extern  void      PyNimbusEngine_LinkPyType ();
+
+
+#define IsPyNimbusEngine(v)    ( (v)->ob_type == &PyTypeNimbusEngine )
+#define PY_NIMBUS_ENGINE(v)    ( (PyNimbusEngine*)(v) )
+#define PY_NIMBUS_ENGINE_O(v)  ( PY_NIMBUS_ENGINE(v)->_baseObject._object )
+
+
+}  // extern "C".
+
+}  // Nimbus namespace.
+
+#endif  // __PY_NIMBUS_ENGINE__