- converted from Python2 code to Python3 code

- in camlib.py, CNCJob class -> generate_from_excellon_by_tool() was
failing in the line to sort the tools due of been unable to compare
between dict's. I replaced that section.

tclCommands/TclCommandCutout.py

@@ -1,8 +1,8 @@
 from ObjectCollection import *
-import TclCommand
+from tclCommands.TclCommand import TclCommand
 
 
-class TclCommandCutout(TclCommand.TclCommand):
+class TclCommandCutout(TclCommand):
     """
     Tcl shell command to create a board cutout geometry.
 
@@ -95,5 +95,5 @@ class TclCommandCutout(TclCommand.TclCommand):
 
         try:
             obj.app.new_object("geometry", name + "_cutout", geo_init_me)
-        except Exception, e:
+        except Exception as e:
             return "Operation failed: %s" % str(e)