diff --git a/src/Mod/Fem/femguiobjects/_ViewProviderFemElementFluid1D.py b/src/Mod/Fem/femguiobjects/_ViewProviderFemElementFluid1D.py
index 05ec100802..6e646a7d51 100644
--- a/src/Mod/Fem/femguiobjects/_ViewProviderFemElementFluid1D.py
+++ b/src/Mod/Fem/femguiobjects/_ViewProviderFemElementFluid1D.py
@@ -458,7 +458,7 @@ class _TaskPanelFemElementFluid1D:
             for ref in self.references:
                 refname_to_compare_listentry = ref[0].Name + ':' + ref[1]
                 if refname_to_compare_listentry == currentItemName:
-                    # print( 'found: shape: ' + ref[0].Name + ' element: ' + ref[1])
+                    # print('found: shape: ' + ref[0].Name + ' element: ' + ref[1])
                     if not ref[0].ViewObject.Visibility:
                         self.obj_notvisible.append(ref[0])
                         ref[0].ViewObject.Visibility = True
diff --git a/src/Mod/Fem/femguiobjects/_ViewProviderFemElementGeometry1D.py b/src/Mod/Fem/femguiobjects/_ViewProviderFemElementGeometry1D.py
index 639c9c4d93..7aaef4616c 100644
--- a/src/Mod/Fem/femguiobjects/_ViewProviderFemElementGeometry1D.py
+++ b/src/Mod/Fem/femguiobjects/_ViewProviderFemElementGeometry1D.py
@@ -257,7 +257,7 @@ class _TaskPanelFemElementGeometry1D:
             for ref in self.references:
                 refname_to_compare_listentry = ref[0].Name + ':' + ref[1]
                 if refname_to_compare_listentry == currentItemName:
-                    # print( 'found: shape: ' + ref[0].Name + ' element: ' + ref[1])
+                    # print('found: shape: ' + ref[0].Name + ' element: ' + ref[1])
                     if not ref[0].ViewObject.Visibility:
                         self.obj_notvisible.append(ref[0])
                         ref[0].ViewObject.Visibility = True
diff --git a/src/Mod/Fem/femguiobjects/_ViewProviderFemElementGeometry2D.py b/src/Mod/Fem/femguiobjects/_ViewProviderFemElementGeometry2D.py
index 9f5f065d22..6836cd030a 100644
--- a/src/Mod/Fem/femguiobjects/_ViewProviderFemElementGeometry2D.py
+++ b/src/Mod/Fem/femguiobjects/_ViewProviderFemElementGeometry2D.py
@@ -215,7 +215,7 @@ class _TaskPanelFemElementGeometry2D:
             for ref in self.references:
                 refname_to_compare_listentry = ref[0].Name + ':' + ref[1]
                 if refname_to_compare_listentry == currentItemName:
-                    # print( 'found: shape: ' + ref[0].Name + ' element: ' + ref[1])
+                    # print('found: shape: ' + ref[0].Name + ' element: ' + ref[1])
                     if not ref[0].ViewObject.Visibility:
                         self.obj_notvisible.append(ref[0])
                         ref[0].ViewObject.Visibility = True
diff --git a/src/Mod/Fem/femguiobjects/_ViewProviderFemElementRotation1D.py b/src/Mod/Fem/femguiobjects/_ViewProviderFemElementRotation1D.py
index ffcca328d2..0165b35d32 100644
--- a/src/Mod/Fem/femguiobjects/_ViewProviderFemElementRotation1D.py
+++ b/src/Mod/Fem/femguiobjects/_ViewProviderFemElementRotation1D.py
@@ -216,7 +216,7 @@ class _TaskPanelFemElementRotation1D:
             for ref in self.references:
                 refname_to_compare_listentry = ref[0].Name + ':' + ref[1]
                 if refname_to_compare_listentry == currentItemName:
-                    # print( 'found: shape: ' + ref[0].Name + ' element: ' + ref[1])
+                    # print('found: shape: ' + ref[0].Name + ' element: ' + ref[1])
                     if not ref[0].ViewObject.Visibility:
                         self.obj_notvisible.append(ref[0])
                         ref[0].ViewObject.Visibility = True
diff --git a/src/Mod/Fem/femguiobjects/_ViewProviderFemMaterial.py b/src/Mod/Fem/femguiobjects/_ViewProviderFemMaterial.py
index 4f60931c42..90ddbfc3f3 100644
--- a/src/Mod/Fem/femguiobjects/_ViewProviderFemMaterial.py
+++ b/src/Mod/Fem/femguiobjects/_ViewProviderFemMaterial.py
@@ -689,7 +689,7 @@ class _TaskPanelFemMaterial:
             for ref in self.references:
                 refname_to_compare_listentry = ref[0].Name + ':' + ref[1]
                 if refname_to_compare_listentry == currentItemName:
-                    # print( 'found: shape: ' + ref[0].Name + ' element: ' + ref[1])
+                    # print('found: shape: ' + ref[0].Name + ' element: ' + ref[1])
                     if not ref[0].ViewObject.Visibility:
                         self.obj_notvisible.append(ref[0])
                         ref[0].ViewObject.Visibility = True
diff --git a/src/Mod/Fem/femguiobjects/_ViewProviderFemMeshGroup.py b/src/Mod/Fem/femguiobjects/_ViewProviderFemMeshGroup.py
index 652288b935..b51d3b5945 100644
--- a/src/Mod/Fem/femguiobjects/_ViewProviderFemMeshGroup.py
+++ b/src/Mod/Fem/femguiobjects/_ViewProviderFemMeshGroup.py
@@ -270,7 +270,7 @@ class _TaskPanelFemMeshGroup:
             for ref in self.references:
                 refname_to_compare_listentry = ref[0].Name + ':' + ref[1]
                 if refname_to_compare_listentry == currentItemName:
-                    # print( 'found: shape: ' + ref[0].Name + ' element: ' + ref[1])
+                    # print('found: shape: ' + ref[0].Name + ' element: ' + ref[1])
                     if not ref[0].ViewObject.Visibility:
                         self.obj_notvisible.append(ref[0])
                         ref[0].ViewObject.Visibility = True
diff --git a/src/Mod/Fem/femguiobjects/_ViewProviderFemMeshRegion.py b/src/Mod/Fem/femguiobjects/_ViewProviderFemMeshRegion.py
index 0a13b45a2d..b8ae71d5aa 100644
--- a/src/Mod/Fem/femguiobjects/_ViewProviderFemMeshRegion.py
+++ b/src/Mod/Fem/femguiobjects/_ViewProviderFemMeshRegion.py
@@ -266,7 +266,7 @@ class _TaskPanelFemMeshRegion:
             for ref in self.references:
                 refname_to_compare_listentry = ref[0].Name + ':' + ref[1]
                 if refname_to_compare_listentry == currentItemName:
-                    # print( 'found: shape: ' + ref[0].Name + ' element: ' + ref[1])
+                    # print('found: shape: ' + ref[0].Name + ' element: ' + ref[1])
                     if not ref[0].ViewObject.Visibility:
                         self.obj_notvisible.append(ref[0])
                         ref[0].ViewObject.Visibility = True