Issue #1066: implement PEP 3109, 2/3 of PEP 3134.
diff --git a/Mac/Tools/Doc/setup.py b/Mac/Tools/Doc/setup.py
index 5f60c51..e1d8fb1 100644
--- a/Mac/Tools/Doc/setup.py
+++ b/Mac/Tools/Doc/setup.py
@@ -59,7 +59,7 @@
         dirname = 'Python-Docs-%s' % self.doc_version
 
         if os.path.exists(self.build_html):
-            raise RuntimeError, '%s: already exists, please remove and try again' % self.build_html
+            raise RuntimeError('%s: already exists, please remove and try again' % self.build_html)
         os.chdir(self.build_base)
         self.spawn('curl','-O', url)
         self.spawn('tar', '-xjf', tarfile)
@@ -146,8 +146,7 @@
         self.mkpath(self.build_base)
         self.ensureHtml()
         if not os.path.isdir(self.build_html):
-            raise RuntimeError, \
-            "Can't find source folder for documentation."
+            raise RuntimeError("Can't find source folder for documentation.")
         self.mkpath(self.build_dest)
         if dep_util.newer(os.path.join(self.build_html,'index.html'), os.path.join(self.build_dest,'index.html')):
             self.mkpath(self.build_dest)