>>> list(group_continuous([1, 2, 4, 5, 7, 8, 10])) [[1, 2], [4, 5], [7, 8], [10]] >>> list(group_continuous(range(5))) [[0, 1, 2, 3, 4]]
(items, key=None)
| 6 | |
| 7 | |
| 8 | def group_continuous(items, key=None): |
| 9 | """ |
| 10 | >>> list(group_continuous([1, 2, 4, 5, 7, 8, 10])) |
| 11 | [[1, 2], [4, 5], [7, 8], [10]] |
| 12 | >>> list(group_continuous(range(5))) |
| 13 | [[0, 1, 2, 3, 4]] |
| 14 | """ |
| 15 | if key is None: |
| 16 | |
| 17 | def identity(value): |
| 18 | return value |
| 19 | |
| 20 | key_func = identity |
| 21 | else: |
| 22 | key_func = key |
| 23 | for _, grouped in itertools.groupby( |
| 24 | enumerate(items), lambda ix: ix[0] - key_func(ix[1]) |
| 25 | ): |
| 26 | yield list(map(itemgetter(1), grouped)) |
| 27 | |
| 28 | |
| 29 | class Peekable: |