| paul@542 | 1 | s = set() |
| paul@542 | 2 | s.add(10) |
| paul@542 | 3 | s.add(20) |
| paul@542 | 4 | s.add("c") |
| paul@542 | 5 | s.add((1, 2)) |
| paul@544 | 6 | |
| paul@542 | 7 | print "# s:", |
| paul@544 | 8 | print s # set([10, 20, "c", (1, 2)) |
| paul@544 | 9 | print len(s) # 4 |
| paul@544 | 10 | print 10 in s # True |
| paul@544 | 11 | print 20 in s # True |
| paul@544 | 12 | print "c" in s # True |
| paul@544 | 13 | print 30 in s # False |
| paul@544 | 14 | print (1, 2) in s # True |
| paul@542 | 15 | |
| paul@542 | 16 | s2 = set([10, 20, "c", (1, 2)]) |
| paul@544 | 17 | |
| paul@542 | 18 | print "# s2:", |
| paul@544 | 19 | print s2 # set([10, 20, "c", (1, 2)) |
| paul@544 | 20 | print len(s2) # 4 |
| paul@544 | 21 | print 10 in s2 # True |
| paul@544 | 22 | print 20 in s2 # True |
| paul@544 | 23 | print "c" in s2 # True |
| paul@544 | 24 | print 30 in s2 # False |
| paul@544 | 25 | print (1, 2) in s2 # True |
| paul@544 | 26 | |
| paul@544 | 27 | a = set([1, 3, 5, 7, 9]) |
| paul@544 | 28 | b = set([1, 2, 3, 5, 7]) |
| paul@544 | 29 | |
| paul@544 | 30 | aub = a.union(b) |
| paul@544 | 31 | aib = a.intersection(b) |
| paul@544 | 32 | adb = a.difference(b) |
| paul@544 | 33 | asdb = a.symmetric_difference(b) |
| paul@544 | 34 | |
| paul@544 | 35 | print len(aub) # 6 |
| paul@544 | 36 | print len(aib) # 4 |
| paul@544 | 37 | print len(adb) # 1 |
| paul@544 | 38 | print len(asdb) # 2 |
| paul@544 | 39 | print |
| paul@544 | 40 | print 1 in aub # True |
| paul@544 | 41 | print 1 in aib # True |
| paul@544 | 42 | print 1 in adb # False |
| paul@544 | 43 | print 1 in asdb # True |
| paul@544 | 44 | print |
| paul@544 | 45 | print 2 in aub # True |
| paul@544 | 46 | print 2 in aib # False |
| paul@544 | 47 | print 2 in adb # False |
| paul@544 | 48 | print 2 in asdb # False |
| paul@544 | 49 | print |
| paul@544 | 50 | print 9 in aub # True |
| paul@544 | 51 | print 9 in aib # False |
| paul@544 | 52 | print 9 in adb # True |
| paul@544 | 53 | print 9 in asdb # False |
| paul@549 | 54 | print |
| paul@549 | 55 | |
| paul@549 | 56 | aub2 = a.copy() |
| paul@549 | 57 | aub2.update(b) |
| paul@549 | 58 | print len(aub2) # 6 |
| paul@549 | 59 | |
| paul@549 | 60 | aib2 = a.copy() |
| paul@549 | 61 | aib2.intersection_update(b) |
| paul@549 | 62 | print len(aib2) # 4 |
| paul@549 | 63 | |
| paul@549 | 64 | adb2 = a.copy() |
| paul@549 | 65 | adb2.difference_update(b) |
| paul@549 | 66 | print len(adb2) # 1 |
| paul@549 | 67 | |
| paul@549 | 68 | asdb2 = a.copy() |
| paul@549 | 69 | asdb2.symmetric_difference_update(b) |
| paul@549 | 70 | print len(asdb2) # 2 |
