root/lib/lists.py @ 2946
| 1 | 1883 | aaronmk | # Lists
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| 2 | |||
| 3 | def is_seq(value): return isinstance(value, list) or isinstance(value, tuple) |
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| 4 | 2415 | aaronmk | |
| 5 | 2669 | aaronmk | def clear(list_): |
| 6 | while True: |
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| 7 | try: list_.pop() |
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| 8 | except IndexError: break |
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| 9 | |||
| 10 | 2415 | aaronmk | def uniqify(list_): |
| 11 | 2699 | aaronmk | '''Removes duplicates from an iterable. Preserves order.'''
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| 12 | 2415 | aaronmk | existing = set() |
| 13 | new_list = [] |
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| 14 | for value in list_: |
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| 15 | if value not in existing: |
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| 16 | existing.add(value) |
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| 17 | new_list.append(value) |
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| 18 | return new_list |