On Sun, 15 May 2011 11:11:41 +0200, Christoph Groth wrote: > I would like to avoid having _multiple_ objects which are equal (a == b) > but not the same (a is not b). This would save a lot of memory.
Based on the idea of interning, which is used for Python strings: cache = {} def my_intern(obj): return cache.setdefault(obj, obj) x = make_some_object() x = my_intern(x) This ensures that equal objects in the graph are not just equal, but the same cached object. -- Steven -- http://mail.python.org/mailman/listinfo/python-list