SF patch 1631942 by Collin Winter:
(a) "except E, V" -> "except E as V"
(b) V is now limited to a simple name (local variable)
(c) V is now deleted at the end of the except block
diff --git a/setup.py b/setup.py
index 1f529e3..b416518 100644
--- a/setup.py
+++ b/setup.py
@@ -186,7 +186,7 @@
 
         try:
             build_ext.build_extension(self, ext)
-        except (CCompilerError, DistutilsError), why:
+        except (CCompilerError, DistutilsError) as why:
             self.announce('WARNING: building of extension "%s" failed: %s' %
                           (ext.name, sys.exc_info()[1]))
             return
@@ -208,7 +208,7 @@
             self.get_ext_filename(self.get_ext_fullname(ext.name)))
         try:
             imp.load_dynamic(ext.name, ext_filename)
-        except ImportError, why:
+        except ImportError as why:
             self.announce('*** WARNING: renaming "%s" since importing it'
                           ' failed: %s' % (ext.name, why), level=3)
             assert not self.inplace