Update the code to better reflect recommended style:

Use != instead of <> since <> is documented as "obsolescent".
Use "is" and "is not" when comparing with None or type objects.
diff --git a/Lib/xdrlib.py b/Lib/xdrlib.py
index 290d92e..c97975d 100644
--- a/Lib/xdrlib.py
+++ b/Lib/xdrlib.py
@@ -95,7 +95,7 @@
         self.pack_uint(0)
 
     def pack_farray(self, n, list, pack_item):
-        if len(list) <> n:
+        if len(list) != n:
             raise ValueError, 'wrong array size'
         for item in list:
             pack_item(item)
@@ -204,7 +204,7 @@
         while 1:
             x = self.unpack_uint()
             if x == 0: break
-            if x <> 1:
+            if x != 1:
                 raise ConversionError, '0 or 1 expected, got ' + `x`
             item = unpack_item()
             list.append(item)