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def partition(lst, n):

division = len(lst) / float(n)

return [list(lst)[int(round(division * i)): int(round(division * (i + 1)))] for i in range(n)]

'''

>>> a = [i for i in range(100)]

>>> partition(a,10)

[[0, 1, 2, 3, 4, 5, 6, 7, 8, 9],

[10, 11, 12, 13, 14, 15, 16, 17, 18, 19],

[20, 21, 22, 23, 24, 25, 26, 27, 28, 29],

[30, 31, 32, 33, 34, 35, 36, 37, 38, 39],

[40, 41, 42, 43, 44, 45, 46, 47, 48, 49],

[50, 51, 52, 53, 54, 55, 56, 57, 58, 59],

[60, 61, 62, 63, 64, 65, 66, 67, 68, 69],

[70, 71, 72, 73, 74, 75, 76, 77, 78, 79],

[80, 81, 82, 83, 84, 85, 86, 87, 88, 89],

[90, 91, 92, 93, 94, 95, 96, 97, 98, 99]]

>>> partition(a,11)

[[0, 1, 2, 3, 4, 5, 6, 7, 8],

[9, 10, 11, 12, 13, 14, 15, 16, 17],

[18, 19, 20, 21, 22, 23, 24, 25, 26],

[27, 28, 29, 30, 31, 32, 33, 34, 35],

[36, 37, 38, 39, 40, 41, 42, 43, 44],

[45, 46, 47, 48, 49, 50, 51, 52, 53, 54],

[55, 56, 57, 58, 59, 60, 61, 62, 63],

[64, 65, 66, 67, 68, 69, 70, 71, 72],

[73, 74, 75, 76, 77, 78, 79, 80, 81],

[82, 83, 84, 85, 86, 87, 88, 89, 90],

[91, 92, 93, 94, 95, 96, 97, 98, 99]]

>>> partition(a,7)

[[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13],

[14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28],

[29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42],

[43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56],

[57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70],

[71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85],

[86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99]]

'''

總結

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