将列表组合成具有特定配对的元组

Question

如果我有

colours = [ "red", "green", "yellow"]
animals = [ "mouse", "tiger", "elephant" ]
coloured_animals = [ (x,y) for x in colours for y in things ]

我需要添加什么以便列表理解返回 （＆＃34;红色＆＃34;，＆＃34;鼠标＆＃34;），（＆＃34;绿色＆＃34;，＆＃34;老虎＆＃34;），（＆＃34;黄色＆＃34;， ＆＃34; elephant＆＃34;）而不是所有配对？

Answer 1

python有这个

的内置函数zip

>>> colours = [ "red", "green", "yellow"]
>>> animals = [ "mouse", "tiger", "elephant" ]
>>> zip(colours, animals)
[('red', 'mouse'), ('green', 'tiger'), ('yellow', 'elephant')]

Answer 2

您可以使用内置函数zip，但如果您想修复列表理解，请按照len(colours) <= len(animals)：

的说明进行操作。

>>> coloured_animals = [(colours[x], animals[x]) for x in range(len(colours))]
>>> coloured_animals
[('red', 'mouse'), ('green', 'tiger'), ('yellow', 'elephant')]
>>>