列表理解与lambda +过滤器

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，并且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? 但是后来我想，这样写会更好吗？

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，并且如果需要性能，则可以取出lambda以获得某些东西。

Question is: are there any caveats in using the second way? 问题是：使用第二种方法是否有警告？ Any performance difference? 有任何性能差异吗？ Am I missing the Pythonic Way™ entirely and should do it in yet another way (such as using itemgetter instead of the lambda)? 我是否完全想念Pythonic Way™，应该以另一种方式来做到这一点（例如，使用itemgetter而不是lambda）吗？

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解决方案：

参考一： https://stackoom.com/question/Cdw1/列表理解与lambda-过滤器
参考二： https://oldbug.net/q/Cdw1/list-comprehension-vs-lambda-filter

来源：oschina

链接：https://my.oschina.net/u/4432649/blog/4327310