Tuples and lists don't have a copy() method (yet?).
diff --git a/Lib/plat-mac/EasyDialogs.py b/Lib/plat-mac/EasyDialogs.py
index 119adfa..1d67091 100644
--- a/Lib/plat-mac/EasyDialogs.py
+++ b/Lib/plat-mac/EasyDialogs.py
@@ -576,7 +576,7 @@
defaultLocation = Carbon.File.FSRef(defaultLocation)
args['defaultLocation'] = aepack.pack(defaultLocation)
if args.has_key('typeList') and not isinstance(args['typeList'], Carbon.Res.ResourceType):
- typeList = args['typeList'].copy()
+ typeList = args['typeList'][:]
# Workaround for OSX typeless files:
if 'TEXT' in typeList and not '\0\0\0\0' in typeList:
typeList = typeList + ('\0\0\0\0',)