diff --git a/hurricane/src/configuration/Configuration.cpp b/hurricane/src/configuration/Configuration.cpp
index 7ffef7ce..dce64338 100644
--- a/hurricane/src/configuration/Configuration.cpp
+++ b/hurricane/src/configuration/Configuration.cpp
@@ -78,7 +78,7 @@ namespace Cfg {
 
   Parameter* Configuration::getParameter ( string name, Parameter::Type type ) const
   {
-    map<const string,Parameter*>::const_iterator iparameter = _parameters.find(name);
+    map<string,Parameter*>::const_iterator iparameter = _parameters.find(name);
     if ( iparameter == _parameters.end() ) return NULL;
 
     if ( type != Parameter::Unknown ) {
diff --git a/hurricane/src/configuration/ConfigurationWidget.cpp b/hurricane/src/configuration/ConfigurationWidget.cpp
index c4f7faec..a5a857fb 100644
--- a/hurricane/src/configuration/ConfigurationWidget.cpp
+++ b/hurricane/src/configuration/ConfigurationWidget.cpp
@@ -172,8 +172,8 @@ namespace Cfg {
 
   void  ConfigurationWidget::syncSlaves ()
   {
-    const map<const string,Parameter*>& parameters = Configuration::get()->getParameters ();
-    map<const string,Parameter*>::const_iterator iparam = parameters.begin();
+    const map<string,Parameter*>& parameters = Configuration::get()->getParameters ();
+    map<string,Parameter*>::const_iterator iparam = parameters.begin();
 
     for ( ; iparam != parameters.end() ; ++iparam ) {
       if ( (*iparam).second->getSlaves().empty() ) continue;
diff --git a/hurricane/src/configuration/hurricane/configuration/Configuration.h b/hurricane/src/configuration/hurricane/configuration/Configuration.h
index c48fbb62..01c7d7e6 100644
--- a/hurricane/src/configuration/hurricane/configuration/Configuration.h
+++ b/hurricane/src/configuration/hurricane/configuration/Configuration.h
@@ -55,7 +55,7 @@ namespace Cfg {
     // Methods.
              ConfigurationWidget*      buildWidget         ( unsigned int flags );
              ConfigurationDialog*      buildDialog         ();
-      inline const std::map<const std::string,Parameter*>&
+      inline const std::map<std::string,Parameter*>&
                                        getParameters       () const;
              const std::set<LogEntry>& getLogs             ( unsigned int ilog ) const;
       inline unsigned int              getFlags            () const;
@@ -80,7 +80,7 @@ namespace Cfg {
     private:
     // Attributes.
       static Configuration*                         _singleton;
-      std::map<const std::string,Parameter*>              _parameters;
+      std::map<std::string,Parameter*>              _parameters;
       LayoutDescription                             _layout;
       unsigned int                                  _flags;
       std::map< unsigned int, std::set<LogEntry> >  _logSets;
@@ -90,7 +90,7 @@ namespace Cfg {
 
 
 // Inline Methods.
-  inline const std::map<const std::string,Parameter*>& Configuration::getParameters () const
+  inline const std::map<std::string,Parameter*>& Configuration::getParameters () const
   { return _parameters; }
 
   inline const LayoutDescription& Configuration::getLayout () const { return _layout; }
diff --git a/hurricane/src/configuration/hurricane/configuration/PyMap.h b/hurricane/src/configuration/hurricane/configuration/PyMap.h
index 3324bb3f..dad38f6e 100644
--- a/hurricane/src/configuration/hurricane/configuration/PyMap.h
+++ b/hurricane/src/configuration/hurricane/configuration/PyMap.h
@@ -117,10 +117,10 @@ namespace Isobar3 {
     string elementName = ::Hurricane::demangle(typeid(CppT));
     size_t cppScope    = elementName.find_last_of( "::" );
     if (cppScope != std::string::npos) elementName = elementName.substr( cppScope+1 );
+    cerr << "elementName: " << elementName <<endl;
     string keyName = ::Hurricane::demangle(typeid(CppK));
     cppScope       = keyName.find_last_of( "::" );
     if (cppScope != std::string::npos) keyName = keyName.substr( cppScope+1 );
-
     manager->_setTypeNames( "MapIteratorOf" + elementName + "By" + keyName );
     manager->_setupPyType();
     PyTypeObject* ob_type = manager->_getTypeObject();
@@ -218,6 +218,9 @@ namespace Isobar3 {
   template< typename CppK, typename CppT >
   PyObject* PyTypeManagerMap<CppK,CppT>::_getMpSubscript ( PyObject* self, PyObject* pyKey )
   {
+    std::cerr << "PyTypeManagerMap<CppK,CppT>::_getMpSubscript" << endl;
+    std::cerr << "CppK: " << demangle(typeid(CppK)) << std::endl;
+    std::cerr << "CppT: " << demangle(typeid(CppT)) << std::endl;
     std::map<CppK,CppT>* pmap = NULL;
     if (not pyToC(self,&pmap)) {
       std::string message = "PyTypeManagerMap<CppK,CppT>::_getMpSubscript(): pyToC<> failed. \".";
@@ -225,6 +228,7 @@ namespace Isobar3 {
       return NULL;
     }
     CppK key;
+    std::cerr << "extracting key, type: " << demangle(typeid(CppK)) << std::endl;
     if (not pyToC( pyKey, &key )) {
       std::string message = "PyTypeManagerMap<CppK,CppT>::_getMpSubscript(): Unable to convert key.";
       PyErr_SetString( HurricaneError, message.c_str() );
@@ -262,8 +266,11 @@ namespace Isobar3 {
   template< typename CppK, typename CppT >
   PyTypeManagerMap<CppK,CppT>* PyTypeManagerMap<CppK,CppT>::create ( PyObject* module, uint64_t flags )
   {
-    // cerr << "PyTypeManagerMap<"
-    //      << ::Hurricane::demangle(typeid(std::map<CppK,CppT>)) << ">::create()" << endl;
+    cerr << "PyTypeManagerMap<"
+          << ::Hurricane::demangle(typeid(std::map<CppK,CppT>)) << ">::create()" << endl;
+
+    cerr << "CppK: " << demangle(typeid(CppK)) << endl <<" CppT: " << demangle(typeid(CppT)) << endl;
+
     PyTypeManagerMap<CppK,CppT>* manager = new PyTypeManagerMap<CppK,CppT>( flags );
 
     string elementName = ::Hurricane::demangle(typeid(CppT));
@@ -280,6 +287,7 @@ namespace Isobar3 {
     ob_type->tp_as_mapping  = &(manager->_mappingMethods);
     ob_type->tp_iter        = (getiterfunc)&::Isobar3::_tpIter;
 
+    PyTypeManager::add<CppK>( module, manager );
     PyTypeManager::add< std::map<CppK,CppT> >( module, manager );
     PyTypeManagerMapIterator<CppK,CppT>::create( module, flags );
 
diff --git a/hurricane/src/configuration/hurricane/configuration/PyTypeManager.h b/hurricane/src/configuration/hurricane/configuration/PyTypeManager.h
index 8ee4e032..c80e37b0 100644
--- a/hurricane/src/configuration/hurricane/configuration/PyTypeManager.h
+++ b/hurricane/src/configuration/hurricane/configuration/PyTypeManager.h
@@ -264,6 +264,7 @@ extern "C" {
     if (element == _managerByPyTypes.end())
       throw Error( "PyTypeManager::get(PyTypeObject*): Unregistered type <%s>."
                  , obType->tp_name );
+    //std::cerr << "returning element "<< (*element) << " second " << (*element).second << std::endl;
     return (*element).second;
   }
 
@@ -434,12 +435,12 @@ extern "C" {
   template< typename CppT >
   inline PyObject* PyTypeManager::link ( CppT* object )
   {
-    // std::cerr << "PyTypeManager<CppT>::link() " << demangle(typeid(CppT).name())
-    //           << "* object = " << (void*)object << ":" << object << std::endl;
+    std::cerr << "PyTypeManager<CppT>::link() " << demangle(typeid(CppT).name())
+               << "* object = " << (void*)object << ":" << object << std::endl;
     if (not object) Py_RETURN_NONE;
     PyTypeManagerVTrunk<CppT>* manager = dynamic_cast< PyTypeManagerVTrunk<CppT>* >( _get<CppT>() );
-    // std::cerr << "_get<CppT>()=" << _get<CppT>() << endl;
-    // std::cerr << demangle(typeid(PyTypeManagerVTrunk<CppT>*).name()) << endl;
+    std::cerr << "_get<CppT>()=" << _get<CppT>() << endl;
+     std::cerr << demangle(typeid(PyTypeManagerVTrunk<CppT>*).name()) << endl;
     if (not manager)
       throw Error( "PyTypeManager<CppT>::link(): No manager for type <%s>."
                  , demangle(typeid(CppT).name()).c_str() );
@@ -1577,11 +1578,13 @@ namespace Isobar3 {
 // -------------------------------------------------------------------
 // Standard Python to C types converters.
 
+using Hurricane::demangle;
 
 template< typename T
         , typename std::enable_if< !std::is_pointer<T>::value, bool >::type = true >
 inline bool  pyToC ( PyObject* pyArg, T* arg )
 {
+  std::cerr << "template< typename T , typename std::enable_if< !std::is_pointer<T>::value, bool >::type = true > pyToC( PyObject* pyArg, T* arg ) " << " T = " << demangle(typeid(T).name()) <<std::endl;
   typedef typename std::remove_cv<T>::type  NonConstT;
   Isobar3::PyTypeManager* manager = Isobar3::PyTypeManager::_get<T>();
   if (not manager) {
@@ -1597,13 +1600,16 @@ inline bool  pyToC ( PyObject* pyArg, T* arg )
 template<typename T>
 inline bool  pyToC ( PyObject* pyArg, T** arg )
 {
+  std::cerr << "template<typename T> pyToC( PyObject* pyArg, T** arg ) " << " T = " << demangle(typeid(T).name()) <<std::endl;
+
   Isobar3::PyTypeManager* manager = Isobar3::PyTypeManager::_get<T>();
   if (not manager) {
-    std::cerr << "Isobar3::pyToC<T>(T*&): Unsupported type \"" << typeid(T).name() << "\"" << std::endl;
+    std::cerr << "Isobar3::pyToC<T>(T*&): Unsupported type \"" << demangle(typeid(T).name()) << "\"" << std::endl;
     return false;
   }
-  // std::cerr << "pyToC< " << demangle(typeid(T).name()) << " >() called." << std::endl;
+   std::cerr << "pyToC< " << demangle(typeid(T).name()) << " >() called." << std::endl;
   *arg = (T*)( Isobar3::object1( pyArg ));
+  std::cerr << "returning "<<std::endl;
   return true;
 }
 
@@ -1701,12 +1707,12 @@ namespace Isobar3 {
     const std::string nth[] = { "First", "Second" , "Third", "Fourth", "Fifth"
                               , "Sixth", "Seventh", "Eight", "Ninth" , "Tenth" };
 
-  //std::cerr << "Calling pyToC<" << demangle(typeid(typename Arg<T>::ValueT).name()) << ">" << std::endl;
-  //std::cerr << "Calling pyToC<" << demangle(typeid(&(as<T>( args[count]))).name()) << ">" << std::endl;
+  std::cerr << "Calling pyToC<" << demangle(typeid(typename Arg<T>::ValueT).name()) << ">" << std::endl;
+  std::cerr << "Calling pyToC<" << demangle(typeid(&(as<T>( args[count]))).name()) << ">" << std::endl;
   //success = success and pyToC< typename Arg<T>::ValueT >( pyArgs[count]
   //                                                      , &(as<T>( args[count])) );
     success = success and pyToC( pyArgs[count], &(as<T>( args[count])) );
-  //std::cerr << "success=" << success << std::endl;
+  std::cerr << "success=" << success << std::endl;
     if (not success) {
       message += "\n  " + getString(nth) + " X argument is not convertible to \"" + Hurricane::demangle(typeid(T).name()) + "\".";
       PyErr_SetString( Isobar3::ConstructorError, message.c_str() );