問題：
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.我碰巧發現自己有一個基本的過濾需求：我有一個列表，我必須按項目的屬性對其進行過濾。
My code looked like this:我的代碼如下所示：
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?但後來我想，這樣寫不是更好嗎？
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.它更具可讀性，如果需要性能，可以取出 lambda 以獲得一些東西。
Question is: are there any caveats in using the second way?問題是：使用第二種方式有什麼注意事項嗎？ Any performance difference?有什麼性能差異嗎？ Am I missing the Pythonic Way™ entirely and should do it in yet another way (such as using itemgetter instead of the lambda)?我是否完全錯過了 Pythonic Way™，應該以另一種方式來實現（例如使用 itemgetter 而不是 lambda）？
解決方案：
參考一： https://stackoom.com/question/Cdw1參考二： List comprehension vs. lambda + filter