py3 compatibility fixes

src/Mod/Arch/importJSON.py

@@ -35,7 +35,8 @@ else:
     def translate(ctxt, txt): return txt
 
 
-if open.__module__ == '__builtin__': pythonopen = open
+if open.__module__ in ['__builtin__','io']:
+    pythonopen = open
 
 
 def export(exportList, filename):

src/Mod/Material/importFCMat.py

@@ -36,7 +36,7 @@ __url__ = "http://www.freecadweb.org"
 
 
 # to distinguish python built-in open function from the one declared below
-if open.__module__ == '__builtin__':
+if open.__module__ in ['__builtin__','io']:
     pythonopen = open
 
 

src/Mod/OpenSCAD/prototype.py

@@ -11,7 +11,7 @@ from OpenSCADFeatures import *
 from OpenSCAD2Dgeom import *
 from OpenSCADUtils import *
 
-if open.__module__ == '__builtin__':
+if open.__module__ in ['__builtin__','io']:
     pythonopen = open # to distinguish python built-in open function from the one declared here
 
 def openscadmesh(doc,scadstr,objname):

src/Mod/Path/PathScripts/post/centroid_post.py

@@ -113,7 +113,7 @@ TOOL_CHANGE = ''''''
 
 
 # to distinguish python built-in open function from the one declared below
-if open.__module__ == '__builtin__':
+if open.__module__ in ['__builtin__','io']:
     pythonopen = open
 
 def processArguments(argstring):

src/Mod/Path/PathScripts/post/dumper_post.py

@@ -35,7 +35,7 @@ now = datetime.datetime.now()
 SHOW_EDITOR = True
 
 # to distinguish python built-in open function from the one declared below
-if open.__module__ == '__builtin__':
+if open.__module__ in ['__builtin__','io']:
     pythonopen = open
 
 

src/Mod/Path/PathScripts/post/dynapath_post.py

@@ -106,7 +106,7 @@ TOOL_CHANGE = ''''''
 
 
 # to distinguish python built-in open function from the one declared below
-if open.__module__ == '__builtin__':
+if open.__module__ in ['__builtin__','io']:
     pythonopen = open
 
 

src/Mod/Path/PathScripts/post/example_post.py

@@ -35,7 +35,7 @@ now = datetime.datetime.now()
 
 
 # to distinguish python built-in open function from the one declared below
-if open.__module__ == '__builtin__':
+if open.__module__ in ['__builtin__','io']:
     pythonopen = open
 
 

src/Mod/Path/PathScripts/post/example_pre.py

@@ -44,7 +44,7 @@ else:
 
 
 # to distinguish python built-in open function from the one declared below
-if open.__module__ == '__builtin__':
+if open.__module__ in ['__builtin__','io']:
     pythonopen = open
 
 

src/Mod/Path/PathScripts/post/fablin_post.py

@@ -91,7 +91,7 @@ TOOL_CHANGE = ''''''
 
 
 # to distinguish python built-in open function from the one declared below
-if open.__module__ == '__builtin__':
+if open.__module__ in ['__builtin__','io']:
     pythonopen = open
 
 def processArguments(argstring):

src/Mod/Path/PathScripts/post/grbl_post.py

@@ -99,7 +99,7 @@ SUPPRESS_TOOL_CHANGE=0
 
 
 # to distinguish python built-in open function from the one declared below
-if open.__module__ == '__builtin__':
+if open.__module__ in ['__builtin__','io']:
     pythonopen = open
 
 

src/Mod/Path/PathScripts/post/linuxcnc_post.py

@@ -97,7 +97,7 @@ POST_OPERATION = ''''''
 TOOL_CHANGE = ''''''
 
 # to distinguish python built-in open function from the one declared below
-if open.__module__ == '__builtin__':
+if open.__module__ in ['__builtin__','io']:
     pythonopen = open
 
 

src/Mod/Path/PathScripts/post/opensbp_post.py

@@ -80,7 +80,7 @@ POST_OPERATION = ''''''
 TOOL_CHANGE = ''''''
 
 # to distinguish python built-in open function from the one declared below
-if open.__module__ == '__builtin__':
+if open.__module__ in ['__builtin__','io']:
     pythonopen = open
 
 CurrentState = {}

src/Mod/Path/PathScripts/post/opensbp_pre.py

@@ -55,7 +55,7 @@ AXIS = 'X','Y','Z','A','B'  #OpenSBP always puts multiaxis move parameters in th
 SPEEDS = 'XY','Z','A','B'
 
 # to distinguish python built-in open function from the one declared below
-if open.__module__ == '__builtin__':
+if open.__module__ in ['__builtin__','io']:
     pythonopen = open
 
 

src/Mod/Path/PathScripts/post/philips_post.py

@@ -290,7 +290,7 @@ GCODE_FOOTER = "M30"
 
 linenr = 0  # variable has to be global because it is used by linenumberify and export
 
-if open.__module__ == '__builtin__':
+if open.__module__ in ['__builtin__','io']:
     pythonopen = open
 
 

src/Mod/Path/PathScripts/post/rml_post.py

@@ -39,7 +39,7 @@ import Part
 import PathScripts.PostUtils as PostUtils
 
 # to distinguish python built-in open function from the one declared below
-if open.__module__ == '__builtin__':
+if open.__module__ in ['__builtin__','io']:
     pythonopen = open
 
 

src/Mod/Path/PathScripts/post/slic3r_pre.py

@@ -30,7 +30,7 @@ import Path
 import FreeCAD
 
 # to distinguish python built-in open function from the one declared below
-if open.__module__ == '__builtin__':
+if open.__module__ in ['__builtin__','io']:
     pythonopen = open
 
 

src/Mod/Path/PathScripts/post/smoothie_post.py

@@ -108,7 +108,7 @@ TOOL_CHANGE = ''''''
 
 
 # to distinguish python built-in open function from the one declared below
-if open.__module__ == '__builtin__':
+if open.__module__ in ['__builtin__','io']:
     pythonopen = open
 
 def processArguments(argstring):

src/Mod/Spreadsheet/importXLSX.py

@@ -62,7 +62,7 @@ try: import FreeCADGui
 except ValueError: gui = False
 else: gui = True
 
-if open.__module__ == '__builtin__':
+if open.__module__ in ['__builtin__','io']:
     pythonopen = open