1# test set binary operations
2
3sets = [set(), {1}, {1, 2}, {1, 2, 3}, {2, 3}, {2, 3, 5}, {5}, {7}]
4for s in sets:
5    for t in sets:
6        print(sorted(s), '|', sorted(t), '=', sorted(s | t))
7        print(sorted(s), '^', sorted(t), '=', sorted(s ^ t))
8        print(sorted(s), '&', sorted(t), '=', sorted(s & t))
9        print(sorted(s), '-', sorted(t), '=', sorted(s - t))
10        u = s.copy()
11        u |= t
12        print(sorted(s), "|=", sorted(t), '-->', sorted(u))
13        u = s.copy()
14        u ^= t
15        print(sorted(s), "^=", sorted(t), '-->', sorted(u))
16        u = s.copy()
17        u &= t
18        print(sorted(s), "&=", sorted(t), "-->", sorted(u))
19        u = s.copy()
20        u -= t
21        print(sorted(s), "-=", sorted(t), "-->", sorted(u))
22
23        print(sorted(s), '==', sorted(t), '=', s == t)
24        print(sorted(s), '!=', sorted(t), '=', s != t)
25        print(sorted(s), '>', sorted(t), '=', s > t)
26        print(sorted(s), '>=', sorted(t), '=', s >= t)
27        print(sorted(s), '<', sorted(t), '=', s < t)
28        print(sorted(s), '<=', sorted(t), '=', s <= t)
29
30print(set('abc') == 1)
31
32# make sure inplace operators modify the set
33
34s1 = s2 = set('abc')
35s1 |= set('ad')
36print(s1 is s2, len(s1))
37
38s1 = s2 = set('abc')
39s1 ^= set('ad')
40print(s1 is s2, len(s1))
41
42s1 = s2 = set('abc')
43s1 &= set('ad')
44print(s1 is s2, len(s1))
45
46s1 = s2 = set('abc')
47s1 -= set('ad')
48print(s1 is s2, len(s1))
49
50# RHS must be a set
51try:
52    print(set('12') >= '1')
53except TypeError:
54    print('TypeError')
55
56# RHS must be a set
57try:
58    print(set('12') <= '123')
59except TypeError:
60    print('TypeError')
61
62# unsupported operator
63try:
64    set('abc') * set('abc')
65except TypeError:
66    print('TypeError')
67
68# unsupported operator with RHS not a set
69try:
70    set('abc') * 2
71except TypeError:
72    print('TypeError')
73