diff -r fda6c1a37662 -r f62625418bff graphics/FBD_Objects.py
--- a/graphics/FBD_Objects.py	Mon Mar 27 10:19:14 2023 +0200
+++ b/graphics/FBD_Objects.py	Fri Oct 28 12:39:15 2022 +0800
@@ -23,8 +23,8 @@
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 
 
-from __future__ import absolute_import
-from __future__ import division
+
+
 import wx
 from six.moves import xrange
 
@@ -78,7 +78,7 @@
         return block
 
     def GetConnectorTranslation(self, element):
-        return dict(zip(self.Inputs + self.Outputs, element.Inputs + element.Outputs))
+        return dict(list(zip(self.Inputs + self.Outputs, element.Inputs + element.Outputs)))
 
     def Flush(self):
         for input in self.Inputs:
@@ -165,7 +165,7 @@
             linesize = max((self.Size[1] - BLOCK_LINE_SIZE) // lines, BLOCK_LINE_SIZE)
             # Update inputs and outputs positions
             position = BLOCK_LINE_SIZE + linesize // 2
-            for i in xrange(lines):
+            for i in range(lines):
                 if scaling is not None:
                     ypos = round_scaling(self.Pos.y + position, scaling[1]) - self.Pos.y
                 else:
@@ -256,7 +256,7 @@
                 outputs = [output for output in blocktype["outputs"]]
                 if blocktype["extensible"]:
                     start = int(inputs[-1][0].replace("IN", ""))
-                    for dummy in xrange(self.Extension - len(blocktype["inputs"])):
+                    for dummy in range(self.Extension - len(blocktype["inputs"])):
                         start += 1
                         inputs.append(("IN%d" % start, inputs[-1][1], inputs[-1][2]))
                 comment = blocktype["comment"]
@@ -451,7 +451,7 @@
         if highlight_type is None:
             self.Highlights = {}
         else:
-            highlight_items = self.Highlights.items()
+            highlight_items = list(self.Highlights.items())
             for name, highlights in highlight_items:
                 highlights = ClearHighlights(highlights, highlight_type)
                 if len(highlights) == 0: