diff --git a/Lib/base64.py b/Lib/base64.py
index 41a5e14..009f9f6 100755
--- a/Lib/base64.py
+++ b/Lib/base64.py
@@ -71,7 +71,7 @@
         s = _translate(s, {altchars[0]: '+', altchars[1]: '/'})
     try:
         return binascii.a2b_base64(s)
-    except binascii.Error, msg:
+    except binascii.Error as msg:
         # Transform this exception for consistency
         raise TypeError(msg)
 
@@ -328,7 +328,7 @@
     import sys, getopt
     try:
         opts, args = getopt.getopt(sys.argv[1:], 'deut')
-    except getopt.error, msg:
+    except getopt.error as msg:
         sys.stdout = sys.stderr
         print msg
         print """usage: %s [-d|-e|-u|-t] [file|-]