RosettaCodeData/Task/Dutch-national-flag-problem/Python/dutch-national-flag-problem-4.py

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Python
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2013-04-10 16:57:12 -07:00
def dutch_flag_sort3(items, order=colours_in_order):
'counts each colour to construct flag'
return sum([[colour] * items.count(colour) for colour in order], [])