--- a/etherlab/CommonEtherCATFunction.py	Sat Sep 29 13:34:06 2018 +0300
+++ b/etherlab/CommonEtherCATFunction.py	Sat Sep 29 13:44:02 2018 +0300
@@ -28,7 +28,7 @@
         return int(value.replace("#", "0"), 16)
 
     except Exception:
-        raise ValueError, "Invalid value for HexDecValue \"%s\"" % value
+        raise ValueError("Invalid value for HexDecValue \"%s\"" % value)
 
 
 def ExtractName(names, default=None):