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/Lib/zipfile.py b/Lib/zipfile.py
index 5c3fff3..0f3bccc 100644
--- a/Lib/zipfile.py
+++ b/Lib/zipfile.py
@@ -812,7 +812,7 @@
                 print "Compiling", file_py
             try:
                 py_compile.compile(file_py, file_pyc, None, True)
-            except py_compile.PyCompileError,err:
+            except py_compile.PyCompileError as err:
                 print err.msg
             fname = file_pyc
         else: