[See multiset.py]


% python
>>> from multiset import *
>>> x = MultiSet([1,2,3,4])
>>> y = MultiSet([3,4,5])
>>> z = MultiSet([0,1,2])

>>> x & y, x | y                               # 2 operands
(Set:[3, 4], Set:[1, 2, 3, 4, 5])

>>> x.intersect(y, z)                          # 3 operands
Set:[]
>>> x.union(y, z)
Set:[1, 2, 3, 4, 5, 0]

>>> x.intersect([1,2,3], [2,3,4], [1,2,3])     # 4 operands 
Set:[2, 3]
>>> x.union(range(10))                         # non-MultiSets work too
Set:[1, 2, 3, 4, 0, 5, 6, 7, 8, 9]