diff --git a/add_mesh_BoltFactory/createMesh.py b/add_mesh_BoltFactory/createMesh.py
index 87b5bc394656e30f34d4d462cb48ca5148dfa2a0..65b890899bc9b60988b67b65c6de495909782519 100644
--- a/add_mesh_BoltFactory/createMesh.py
+++ b/add_mesh_BoltFactory/createMesh.py
@@ -142,11 +142,11 @@ def Simple_RotationMatrix(angle, matSize, axisFlag):
     q = radians(angle)  #make the rotation go clockwise
     
     if axisFlag == 'x':
-        matrix = MATHUTILS.Matrix([1,0,0,0],[0,cos(q),sin(q),0],[0,-sin(q),cos(q),0],[0,0,0,1])
+        matrix = MATHUTILS.Matrix(((1,0,0,0),(0,cos(q),sin(q),0),(0,-sin(q),cos(q),0),(0,0,0,1)))
     elif  axisFlag == 'y':
-        matrix = MATHUTILS.Matrix([cos(q),0,-sin(q),0],[0,1,0,0],[sin(q),0,cos(q),0],[0,0,0,1])  
+        matrix = MATHUTILS.Matrix(((cos(q),0,-sin(q),0),(0,1,0,0),(sin(q),0,cos(q),0),(0,0,0,1)))
     elif axisFlag == 'z':
-        matrix = MATHUTILS.Matrix([cos(q),sin(q),0,0],[-sin(q),cos(q),0,0],[0,0,1,0],[0,0,0,1])  
+        matrix = MATHUTILS.Matrix(((cos(q),sin(q),0,0),(-sin(q),cos(q),0,0),(0,0,1,0),(0,0,0,1)))
     else:
         print   ("Simple_RotationMatrix can only do x y z axis")
     return matrix
diff --git a/io_import_scene_dxf.py b/io_import_scene_dxf.py
index 6331d13a711e6be3f62e5b8b0ce2dbaec52138c2..e3a4d336d46622c2e6c24480c6e270072ec121b5 100644
--- a/io_import_scene_dxf.py
+++ b/io_import_scene_dxf.py
@@ -1410,7 +1410,7 @@ def getOCS(az):  #--------------------------------------------------------------
 def transform(normal, rotation, obj):  #--------------------------------------------
     """Use the calculated ocs to determine the objects location/orientation in space.
     """
-    ma = Matrix([1,0,0,0],[0,1,0,0],[0,0,1,0],[0,0,0,1])
+    ma = Matrix(((1,0,0,0),(0,1,0,0),(0,0,1,0),(0,0,0,1)))
     o = Vector(obj.location)
     ma_new = getOCS(normal)
     if ma_new:
@@ -1419,7 +1419,7 @@ def transform(normal, rotation, obj):  #----------------------------------------
 
     if rotation != 0:
         g = radians(-rotation)
-        rmat = Matrix([cos(g), -sin(g), 0], [sin(g), cos(g), 0], [0, 0, 1])
+        rmat = Matrix(((cos(g), -sin(g), 0), (sin(g), cos(g), 0), (0, 0, 1)))
         ma = ma * rmat.resize4x4()
 
     obj.matrix_world = ma #must be matrix4x4