6 examples of 'python set union' in Python

228
def test_union(self):
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    self.assertCodeExecution("""
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        x = frozenset({1, 2, 3})
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        y = frozenset({3, 4, 5})
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        z = [5, 6, 7]
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        w = 1
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        t = frozenset()
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        print(x.union(y))
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        # empty set test
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        print(x.union(t))
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        # multiple args test
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        print(x.union(y, z))
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        # iterable test
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        print(x.union(z))
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        # not-iterable test
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        try:
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            print(x.union(w))
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        except TypeError as err:
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            print(err)
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        """)

94
def union():
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    for x in self:
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        yield x
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    for other in others:
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        for x in other:
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            yield x

41
def set_union(arr, *others):
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    pass

72
def union(a, b):
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    if isinstance(a, collections.Hashable) and isinstance(b, collections.Hashable):
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        c = set(a) | set(b)
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    else:
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        c = unique(a + b)
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    return c

6
def testUnionFind(self):
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    ds = DisjointSet(range(100))
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    for i in range(100):
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        ds.union(i, i % 5)
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    for i in range(100):
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        for j in range(i, 100):
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            self.assertEqual(ds.find_set(i) == ds.find_set(j), i%5 ==j%5)

93
def union(*seqs):
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    result = set([])
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    for seq in seqs:
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        if not isinstance(seq, set):
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            seq = set(seq)
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        result |= seq
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    return type(seqs[0])(list(result))