diff --git a/src/hpp/corbaserver/rbprm/anymal/__init__.py b/src/hpp/corbaserver/rbprm/anymal/__init__.py
index 9c6c80ed4530b6d3242c9a0f78ec1038e5a3eb77..7c4e3a8effd69a7b664b6f861b7a917bd9e7f3f9 100644
--- a/src/hpp/corbaserver/rbprm/anymal/__init__.py
+++ b/src/hpp/corbaserver/rbprm/anymal/__init__.py
@@ -2,4 +2,4 @@
 # Copyright (c) 2019 CNRS
 # Author : Pierre Fernbach
 
-from robot import Robot
+from .robot import Robot
diff --git a/src/hpp/corbaserver/rbprm/anymal/robot.py b/src/hpp/corbaserver/rbprm/anymal/robot.py
index 60cac6920d0e8ed9c18c48a10de545f34eb0da50..fec14ec1c17ee9ac0ac711ac4d282f4885a20a14 100644
--- a/src/hpp/corbaserver/rbprm/anymal/robot.py
+++ b/src/hpp/corbaserver/rbprm/anymal/robot.py
@@ -161,9 +161,9 @@ class Robot (Parent):
             raise Exception("heuristic should be either a string or a map limbId:string")
         #dict_heuristic = {self.rLegId:"static", self.lLegId:"static", self.rArmId:"fixedStep04", self.lArmId:"fixedStep04"}
         for id in self.limbs_names:
-            print "add limb : ",id
+            print("add limb : ",id)
             eff = self.dict_limb_joint[id]
-            print "effector name = ",eff
+            print("effector name = ",eff)
             self.addLimb(id,self.dict_limb_rootJoint[id],eff,self.dict_offset[eff].translation.tolist(),self.dict_normal[eff],self.dict_size[eff][0]/2.,self.dict_size[eff][1]/2.,nbSamples,dict_heuristic[id],octreeSize,self.cType,disableEffectorCollision = disableEffectorCollision,kinematicConstraintsPath=self.kinematicConstraintsPath+self.dict_limb_rootJoint[id]+"_06_com_constraints.obj",limbOffset=self.dict_limb_offset[id],kinematicConstraintsMin=self.minDist)
             if analysis :
                 self.runLimbSampleAnalysis(id, analysis, True)
diff --git a/src/hpp/corbaserver/rbprm/anymal_abstract/__init__.py b/src/hpp/corbaserver/rbprm/anymal_abstract/__init__.py
index 9c6c80ed4530b6d3242c9a0f78ec1038e5a3eb77..7c4e3a8effd69a7b664b6f861b7a917bd9e7f3f9 100644
--- a/src/hpp/corbaserver/rbprm/anymal_abstract/__init__.py
+++ b/src/hpp/corbaserver/rbprm/anymal_abstract/__init__.py
@@ -2,4 +2,4 @@
 # Copyright (c) 2019 CNRS
 # Author : Pierre Fernbach
 
-from robot import Robot
+from .robot import Robot
diff --git a/src/hpp/corbaserver/rbprm/anymal_contact6D/__init__.py b/src/hpp/corbaserver/rbprm/anymal_contact6D/__init__.py
index 9c6c80ed4530b6d3242c9a0f78ec1038e5a3eb77..7c4e3a8effd69a7b664b6f861b7a917bd9e7f3f9 100644
--- a/src/hpp/corbaserver/rbprm/anymal_contact6D/__init__.py
+++ b/src/hpp/corbaserver/rbprm/anymal_contact6D/__init__.py
@@ -2,4 +2,4 @@
 # Copyright (c) 2019 CNRS
 # Author : Pierre Fernbach
 
-from robot import Robot
+from .robot import Robot
diff --git a/src/hpp/corbaserver/rbprm/anymal_contact6D/robot.py b/src/hpp/corbaserver/rbprm/anymal_contact6D/robot.py
index 7c31a8db456c2f12116e2d5234a092c1b9c9b294..597690799f1a564852a6cca922a91547818130c4 100644
--- a/src/hpp/corbaserver/rbprm/anymal_contact6D/robot.py
+++ b/src/hpp/corbaserver/rbprm/anymal_contact6D/robot.py
@@ -116,9 +116,9 @@ class Robot (Parent):
             raise Exception("heuristic should be either a string or a map limbId:string")
         #dict_heuristic = {self.rLegId:"static", self.lLegId:"static", self.rArmId:"fixedStep04", self.lArmId:"fixedStep04"}
         for id in self.limbs_names:
-            print "add limb : ",id
+            print("add limb : ",id)
             eff = self.dict_limb_joint[id]
-            print "effector name = ",eff
+            print("effector name = ",eff)
             self.addLimb(id,self.dict_limb_rootJoint[id],eff,self.dict_offset[eff].translation.tolist(),self.dict_normal[eff],self.dict_size[eff][0]/2.,self.dict_size[eff][1]/2.,nbSamples,dict_heuristic[id],octreeSize,self.cType,kinematicConstraintsPath=self.kinematicConstraintsPath+self.dict_limb_rootJoint[id]+"06_com_constraints.obj",limbOffset=self.dict_limb_offset[id],kinematicConstraintsMin=self.minDist)
             if analysis :
                 self.runLimbSampleAnalysis(id, analysis, True)