from collections import defaultdict

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showing results for - "from collections import defaultdict"
Mattia
01 Feb 2017
1>>> s = [('yellow', 1), ('blue', 2), ('yellow', 3), ('blue', 4), ('red', 1)]
2>>> d = defaultdict(list)
3>>> for k, v in s:
4...     d[k].append(v)
5...
6>>> d.items()
7[('blue', [2, 4]), ('red', [1]), ('yellow', [1, 3])]
8
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