diff --git a/bindings/Sofa/src/SofaPython3/Sofa/Core/Binding_Mapping.cpp b/bindings/Sofa/src/SofaPython3/Sofa/Core/Binding_Mapping.cpp
index 9c8e8ac0..8789f494 100644
--- a/bindings/Sofa/src/SofaPython3/Sofa/Core/Binding_Mapping.cpp
+++ b/bindings/Sofa/src/SofaPython3/Sofa/Core/Binding_Mapping.cpp
@@ -135,7 +135,7 @@ namespace sofapython3
 
         py::dict mp = py::dict("time"_a=getContext()->getTime());
 
-        PYBIND11_OVERLOAD_PURE(void, Inherit1, applyConstrainsJT, mp,
+        PYBIND11_OVERLOAD_PURE(void, Inherit1, applyConstraintsJT, mp,
                                PythonFactory::toPython(&out), PythonFactory::toPython(&in));
     }
 
diff --git a/examples/example-mapping.py b/examples/example-mapping.py
index 9fe6f423..c3218389 100644
--- a/examples/example-mapping.py
+++ b/examples/example-mapping.py
@@ -32,7 +32,7 @@ def applyJ(self, m, outDeriv, inDeriv):
     def applyJT(self, m, outDeriv, inDeriv):
         print("PYTHON(🐍) APPLY-JT", outDeriv, inDeriv)
 
-    def applyConstrainsJT(self, m, outDeriv, inDeriv):
+    def applyConstraintsJT(self, m, outDeriv, inDeriv):
         print("PYTHON(🐍) APPLY-JT for constraints, data are [⋱]", m, outDeriv, inDeriv)
         print("Constraints ", inDeriv.value)
 
@@ -81,13 +81,13 @@ def createScene(root):
 def main():
     import SofaRuntime
     import Sofa.Gui
-    import SofaQt
+    import SofaImGui
 
     root=Sofa.Core.Node("root")
     createScene(root)
     Sofa.Simulation.initRoot(root)
 
-    Sofa.Gui.GUIManager.Init("myscene", "qglviewer")
+    Sofa.Gui.GUIManager.Init("myscene", "imgui")
     Sofa.Gui.GUIManager.createGUI(root, __file__)
     Sofa.Gui.GUIManager.SetDimension(1080, 1080)
     Sofa.Gui.GUIManager.MainLoop(root)
diff --git a/examples/example-mapping_3_to_1.py b/examples/example-mapping_3_to_1.py
index 96c7b6d0..d486855f 100644
--- a/examples/example-mapping_3_to_1.py
+++ b/examples/example-mapping_3_to_1.py
@@ -34,7 +34,7 @@ def applyJ(self, m, outDeriv, inDeriv):
     def applyJT(self, m, outDeriv, inDeriv):
         print("PYTHON() APPLY-JT", outDeriv, inDeriv)
 
-    def applyConstrainsJT(self, m, outDeriv, inDeriv):
+    def applyConstraintsJT(self, m, outDeriv, inDeriv):
         print("PYTHON() APPLY-JT for constraints, data are [⋱]", m, outDeriv, inDeriv)
         print("Constraints ", inDeriv.value)