问题：
I happened to find myself having a basic filtering need: I have a list and I have to filter it by an attribute of the items.我碰巧发现自己有一个基本的过滤需求：我有一个列表，我必须按项目的属性对其进行过滤。
My code looked like this:我的代码如下所示：
my_list = [x for x in my_list if x.attribute == value]
But then I thought, wouldn't it be better to write it like this?但后来我想，这样写不是更好吗？
my_list = filter(lambda x: x.attribute == value, my_list)
It's more readable, and if needed for performance the lambda could be taken out to gain something.它更具可读性，如果需要性能，可以取出 lambda 以获得一些东西。
Question is: are there any caveats in using the second way?问题是：使用第二种方式有什么注意事项吗？ Any performance difference?有什么性能差异吗？ Am I missing the Pythonic Way™ entirely and should do it in yet another way (such as using itemgetter instead of the lambda)?我是否完全错过了 Pythonic Way™，应该以另一种方式来实现（例如使用 itemgetter 而不是 lambda）？
解决方案：
参考一： https://stackoom.com/question/Cdw1参考二： List comprehension vs. lambda + filter