从python列表中获取元素的唯一组合 [英] Get unique combinations of elements from a python list

查看：317 发布时间：2020/5/2 5:22:02 python list combinations

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这个主题是关于寻找唯一的组合，而另一个主题是关于寻找所有的组合.

This topic is about finding unique combinations while the other topic is about finding ALL combinations.

如果我有python列表:

If I have a python list:

 L = [1,2,3,4]

从以下列表中获取3个元素的所有可能唯一组合的最佳方法是什么:

what's the best way to get all the possible unique combinations of 3 elements from the list like below:

["1,2,3", "1,2,4", "2,3,4", "3,4,1"]

组合中元素的顺序无关紧要.例如，"1,2,3"和"3,2,1"将被视为相同的组合.

The order of the elements in the combinations doesn't matter. For example, "1,2,3" and "3,2,1" will be considered the same combination.

我可能可以编写一些循环来执行此操作，但我认为可能会有一个单行代码可以执行相同的操作.

I can probably write a few loops to do this but I think there might be a one-liner which can do the same.