Don't memoize the empty tuple in protocol 0.

cbe2dbdd · Guido van Rossum · 4faea015 · cbe2dbdd
Kaydet (Commit) cbe2dbdd authored Ock 28, 2003 tarafından Guido van Rossum
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pickle.py Lib/pickle.py +2 -1

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--- a/Lib/pickle.py
+++ b/Lib/pickle.py
@@ -502,7 +502,8 @@ class Pickler:

        # No recursion (including the empty-tuple case for protocol 0).
        self.write(TUPLE)
-        self.memoize(object) # XXX shouldn't memoize empty tuple?!
+        if object:                      # No need to memoize empty tuple
+            self.memoize(object)

    dispatch[TupleType] = save_tuple