remove Python2 code

src/Mod/Fem/feminout/importCcxDatResults.py

@@ -40,12 +40,7 @@ EIGENVALUE_OUTPUT_SECTION = "     E I G E N V A L U E   O U T P U T"
 
 
 # ********* generic FreeCAD import and export methods *********
-if open.__module__ == "__builtin__":
-    # because we'll redefine open below (Python2)
-    pyopen = open
-elif open.__module__ == "io":
-    # because we'll redefine open below (Python3)
-    pyopen = open
+pyopen = open
 
 
 def open(

src/Mod/Fem/feminout/importCcxFrdResults.py

@@ -38,12 +38,7 @@ from FreeCAD import Console
 
 
 # ********* generic FreeCAD import and export methods *********
-if open.__module__ == "__builtin__":
-    # because we'll redefine open below (Python2)
-    pyopen = open
-elif open.__module__ == "io":
-    # because we'll redefine open below (Python3)
-    pyopen = open
+pyopen = open
 
 
 def open(filename):

src/Mod/Fem/feminout/importFenicsMesh.py

@@ -46,12 +46,7 @@ if FreeCAD.GuiUp:
 
 # Template copied from importZ88Mesh.py. Thanks Bernd!
 # ********* generic FreeCAD import and export methods *********
-if open.__module__ == "__builtin__":
-    # because we'll redefine open below (Python2)
-    pyopen = open
-elif open.__module__ == "io":
-    # because we'll redefine open below (Python3)
-    pyopen = open
+pyopen = open
 
 if FreeCAD.GuiUp:
     class WriteXDMFTaskPanel:

src/Mod/Fem/feminout/importInpMesh.py

@@ -38,12 +38,7 @@ from FreeCAD import Console
 
 
 # ********* generic FreeCAD import and export methods *********
-if open.__module__ == "__builtin__":
-    # because we'll redefine open below (Python2)
-    pyopen = open
-elif open.__module__ == "io":
-    # because we'll redefine open below (Python3)
-    pyopen = open
+pyopen = open
 
 
 def open(filename):

src/Mod/Fem/feminout/importPyMesh.py

@@ -38,12 +38,7 @@ from femmesh import meshtools
 # names are fix given from FreeCAD, these methods are called from FreeCAD
 # they are set in FEM modules Init.py
 
-if open.__module__ == "__builtin__":
-    # because we'll redefine open below (Python2)
-    pyopen = open
-elif open.__module__ == "io":
-    # because we'll redefine open below (Python3)
-    pyopen = open
+ipyopen = open
 
 
 # export mesh to python

src/Mod/Fem/feminout/importVTKResults.py

@@ -39,12 +39,7 @@ import Fem
 
 
 # ********* generic FreeCAD import and export methods *********
-if open.__module__ == "__builtin__":
-    # because we'll redefine open below (Python2)
-    pyopen = open
-elif open.__module__ == "io":
-    # because we'll redefine open below (Python3)
-    pyopen = open
+pyopen = open
 
 
 def open(

src/Mod/Fem/feminout/importYamlJsonMesh.py

@@ -53,12 +53,7 @@ except ImportError:
 # names are fix given from FreeCAD, these methods are called from FreeCAD
 # they are set in FEM modules Init.py
 
-if open.__module__ == "__builtin__":
-    # because we'll redefine open below (Python2)
-    pyopen = open
-elif open.__module__ == "io":
-    # because we'll redefine open below (Python3)
-    pyopen = open
+pyopen = open
 
 
 def open(

src/Mod/Fem/feminout/importZ88Mesh.py

@@ -41,12 +41,7 @@ from femmesh import meshtools
 # names are fix given from FreeCAD, these methods are called from FreeCAD
 # they are set in FEM modules Init.py
 
-if open.__module__ == "__builtin__":
-    # because we'll redefine open below (Python2)
-    pyopen = open
-elif open.__module__ == "io":
-    # because we'll redefine open below (Python3)
-    pyopen = open
+pyopen = open
 
 
 def open(

src/Mod/Fem/feminout/importZ88O2Results.py

@@ -36,12 +36,7 @@ from FreeCAD import Console
 
 
 # ********* generic FreeCAD import and export methods *********
-if open.__module__ == "__builtin__":
-    # because we'll redefine open below (Python2)
-    pyopen = open
-elif open.__module__ == "io":
-    # because we'll redefine open below (Python3)
-    pyopen = open
+pyopen = open
 
 
 def open(