diff --git a/Lib/plat-mac/aepack.py b/Lib/plat-mac/aepack.py
index aa0f2cd..726a7de 100644
--- a/Lib/plat-mac/aepack.py
+++ b/Lib/plat-mac/aepack.py
@@ -17,7 +17,7 @@
 from Carbon.AppleEvents import *
 import MacOS
 import Carbon.File
-import StringIO
+import io
 import aetypes
 from aetypes import mkenum, ObjectSpecifier
 import os
diff --git a/Lib/plat-mac/gensuitemodule.py b/Lib/plat-mac/gensuitemodule.py
index 10a996f..b487f55 100644
--- a/Lib/plat-mac/gensuitemodule.py
+++ b/Lib/plat-mac/gensuitemodule.py
@@ -12,7 +12,7 @@
 import string
 import sys
 import types
-import StringIO
+import io
 import keyword
 import macresource
 import aetools
@@ -266,7 +266,7 @@
 
 def decode(data, verbose=None):
     """Decode a resource into a python data structure"""
-    f = StringIO.StringIO(data)
+    f = io.StringIO(data)
     aete = generic(getaete, f)
     aete = simplify(aete)
     processed = f.tell()