Get rid of most of the flags (in tp_flags) that keep track of various
variations of the type struct and its attachments.  In Py3k, all type
structs have to have all fields -- no binary backwards compatibility.
Had to change the complex object to a new-style number!
diff --git a/Lib/plat-mac/aetools.py b/Lib/plat-mac/aetools.py
index 3fca7a2..06a0ddc 100644
--- a/Lib/plat-mac/aetools.py
+++ b/Lib/plat-mac/aetools.py
@@ -169,7 +169,7 @@
             signature = self._signature
         if type(signature) == AEDescType:
             self.target = signature
-        elif type(signature) == InstanceType and hasattr(signature, '__aepack__'):
+        elif hasattr(signature, '__aepack__'):
             self.target = signature.__aepack__()
         elif type(signature) == StringType and len(signature) == 4:
             self.target = AE.AECreateDesc(AppleEvents.typeApplSignature, signature)