1print(dict([(1, "foo")]))
2d = dict([("foo", "foo2"), ("bar", "baz")])
3print(sorted(d.keys()))
4print(sorted(d.values()))
5
6try:
7    dict(((1,),))
8except ValueError:
9    print("ValueError")
10
11try:
12    dict(((1, 2, 3),))
13except ValueError:
14    print("ValueError")
15