don't crash when encountering bad marshal data

diff --git a/Mac/Tools/IDE/MacPrefs.py b/Mac/Tools/IDE/MacPrefs.py
index f8888fcf34f59d52a12712c6e62333d18680cab6..b1fa7cabcc9f5cac79d2b76ee24c94398071a324 100644 (file)
--- a/Mac/Tools/IDE/MacPrefs.py
+++ b/Mac/Tools/IDE/MacPrefs.py
@@ -50,7 +50,8 @@ class PrefFile(PrefObject):
                self._prefsdict = {}
                try:
                        prefdict = marshal.load(open(self.__path, 'rb'))
-               except IOError:
+               except (IOError, ValueError):
+                       # file not found, or currupt marshal data
                        pass
                else:
                        for key, value in prefdict.items():