Killed the <> operator.  You must now use !=.

Opportunistically also fixed one or two places where '<> None' should be
'is not None' and where 'type(x) <> y' should be 'not isinstance(x, y)'.
diff --git a/Lib/plat-mac/macerrors.py b/Lib/plat-mac/macerrors.py
index ce2a118..faa5244 100644
--- a/Lib/plat-mac/macerrors.py
+++ b/Lib/plat-mac/macerrors.py
@@ -1574,7 +1574,7 @@
 smFHBlockRdErr  =   -310    #Error occurred during _sGetFHeader.
 smBLFieldBad    =   -309    #ByteLanes field was bad.
 smUnExBusErr    =   -308    #Unexpected BusError
-smResrvErr  =   -307    #Fatal reserved error. Resreved field <> 0.
+smResrvErr  =   -307    #Fatal reserved error. Resreved field != 0.
 smNosInfoArray  =   -306    #No sInfoArray. Memory Mgr error.
 smDisabledSlot  =   -305    #This slot is disabled (-305 use to be smLWTstBad)
 smNoDir =   -304    #Directory offset is Nil