diff --git a/Mac/scripts/buildpkg.py b/Mac/scripts/buildpkg.py
index 73dd4b6..ad0afe4 100644
--- a/Mac/scripts/buildpkg.py
+++ b/Mac/scripts/buildpkg.py
@@ -194,7 +194,7 @@
             if k in fields:
                 self.packageInfo[k] = v
             elif not k in ["OutputDir"]:
-                raise Error, "Unknown package option: %s" % k
+                raise Error("Unknown package option: %s" % k)
 
         # Check where we should leave the output. Default is current directory
         outputdir = options.get("OutputDir", os.getcwd())
diff --git a/Mac/scripts/mkestrres.py b/Mac/scripts/mkestrres.py
index d423892..93af56e 100644
--- a/Mac/scripts/mkestrres.py
+++ b/Mac/scripts/mkestrres.py
@@ -33,7 +33,7 @@
 
 def Pstring(str):
     if len(str) > 255:
-        raise ValueError, 'String too large'
+        raise ValueError('String too large')
     return chr(len(str))+str
 
 def writeestr(dst, edict):