From the README:

jyset -- a Set class for Jython Copyright (c) 2005 by Mike Hostetler <thehaas@binary.net> All Rights Reserved. jyset is distributed under the Apache 2.0 license jyset is a module that implements a Set class in Jython that emulates the Set class introduced in CPython 2.3. Note that this is an implementation of Set class -- not BaseSet or ImmutableSet. For more information about the Set class, see the current Python documentation on that module: http://docs.python.org/lib/module-sets.html jyset currenly lacks some type checking -- for example, if you try to check to see if s2 is a superset of s1 and s2 is really an integer, you will get a more cryptic error. You have been warned (if someone would like to help with this . . ) See the main function of jyset.py or the sample.py for usage help, although the link to the Python Docs would probably be more helpful! You can download it from here: http://users.binary.net/thehaas/lab/files/jyset.zip -- Mike Hostetler thehaas@binary.net http://www.binary.net/thehaas