diff --git a/src/dynamic_graph/entity.py b/src/dynamic_graph/entity.py
index eb0a0ee7f1c7df1a3d0b22d679c7cf2e5200f671..57629e6f9d9538205fe312e4e68fb058280ccd83 100644
--- a/src/dynamic_graph/entity.py
+++ b/src/dynamic_graph/entity.py
@@ -5,7 +5,7 @@
 """
 import wrap, signal_base
 
-class Entity:
+class Entity (object) :
     """
     This class binds dynamicgraph::Entity C++ class
     """
diff --git a/src/dynamic_graph/signal_base.py b/src/dynamic_graph/signal_base.py
index a2454c8243981b325a34e9db36df76b3b7d77304..83f6b46c10d05a14b9ff2bd49e7094915992cf3e 100644
--- a/src/dynamic_graph/signal_base.py
+++ b/src/dynamic_graph/signal_base.py
@@ -5,7 +5,7 @@
 """
 import wrap
 
-class SignalBase:
+class SignalBase (object) :
     """
     This class binds dynamicgraph::SignalBase<int> C++ class
     """
@@ -29,13 +29,15 @@ class SignalBase:
         """
         return wrap.signalBaseGetTime(self.object)
 
-    def get_value(self) :
+    @property
+    def value(self) :
         """
         Read the value of a signal
         """
         return wrap.signal_base_get_value(self.object)
 
-    def set_value(self, val) :
+    @value.setter
+    def value(self, val) :
         """
         Set the signal as a constant signal with given value.
         If the signal is plugged, it will be unplugged