when i try to run the following program, Python complains about some
global name frozenset is not defined. Is set some new facility in
Python 2.4?
©# from Reinhold Birkenfeld
©def merge(pairings):
© sets = {}
© for x1, x2 in pairings:
© newset = (sets.get(x1, frozenset([x1]))
© | sets.get(x2, frozenset([x2])))
© for i in newset:
© sets[i] = newset
©
© return [list(aset) for aset in set(sets.itervalues())]
it would be nice if the two working programs do not use some package.
This problem shouldn't need to.
Xah
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