#1535: rename __builtin__ module to builtins.
diff --git a/Lib/aifc.py b/Lib/aifc.py
index 085fa90..9b41c35 100644
--- a/Lib/aifc.py
+++ b/Lib/aifc.py
@@ -135,7 +135,7 @@
 """
 
 import struct
-import __builtin__
+import builtins
 
 __all__ = ["Error","open","openfp"]
 
@@ -336,7 +336,7 @@
 
     def __init__(self, f):
         if type(f) == type(''):
-            f = __builtin__.open(f, 'rb')
+            f = builtins.open(f, 'rb')
         # else, assume it is an open file object already
         self.initfp(f)
 
@@ -557,7 +557,7 @@
     def __init__(self, f):
         if type(f) == type(''):
             filename = f
-            f = __builtin__.open(f, 'wb')
+            f = builtins.open(f, 'wb')
         else:
             # else, assume it is an open file object already
             filename = '???'