在Python中合并两个嵌套列表 [英] Merge two nested lists in Python

问题描述

我有两个列表：

x = [['a', 1], ['b', 2], ['c', 3]]
y = [['a', 4], ['c', 6]]

我只想保留这些字母的常用元素，并将2个列表合并成：

I would like to keep only the common elements of the letters and combine the 2 lists into:

[['a', 1, 4], ['c', 3, 6]]

如何做到这一点？

推荐答案

>>> x = [['a', 1], ['b', 2], ['c', 3]]
>>> y = [['a', 4], ['c', 6]]
>>> lazy = dict
>>> lazyx = lazy(x)
>>> lazyy = lazy(y)
>>> [[lazy, lazyx[lazy], lazyy[lazy]] for lazy in lazyx if lazy in lazyy]
[['a', 1, 4], ['c', 3, 6]]

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