Hi!
frozenset() doesn't behave as the other immutable empty data types in 2.4:
.>>> '' is '' True .>>> () is () True .>>> frozenset() is frozenset() False
.>>> id(()),id(()) (1077579820, 1077579820) .>>> id(()) 1077579820 .>>> id(frozenset()),id(frozenset()) (1077581296, 1077581296) .>>> id(frozenset()) 1077581440 .>>> id(frozenset(())) 1077582256
frozenset() called without arguments (or on empty sequences) should always return a singleton object. It is immutable, so I can see no reason why it should take up more resources than necessary.
Stefan -- http://mail.python.org/mailman/listinfo/python-list
