| mapping | builtin-class dict |
| mapping | class MyDictSubclass |
| neither sequence nor mapping | builtin-class set |
| neither sequence nor mapping | class MyMappingABC |
| neither sequence nor mapping | class MySequenceABC |
| sequence | builtin-class list |
| sequence | builtin-class str |
| sequence | builtin-class tuple |
| sequence | builtin-class unicode |
| sequence | class MySequenceImpl |