如何将列表项分组为元组? [英] How to group list items into tuple?

问题描述

我有一个数字列表，如何将每个n个数字分组为一个元组?

I have a list of numbers, how can I group every n numbers into a tuple?

例如，如果我有一个列表a = range(10)，并且想将每5个项目分组为一个元组，那么:

For example, if I have a list a = range(10) and I want to group every 5 items into a tuple, so:

b = [(0,1,2,3,4),(5,6,7,8,9)]

我该怎么做?如果len(a)不是n的整数倍，我也想引发一个错误.

How can I do this? I also want to raise an error if len(a) is not an integer multiple of n.

推荐答案

>>> a
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
>>> [tuple(a[i:i+5]) for i in range(0, len(a), 5)]
[(0, 1, 2, 3, 4), (5, 6, 7, 8, 9)]

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