python枚举中未使用的变量

Question

Im using enumerate to obtain the indexes in a list ("i"), but I don't need the value of every element ("j"). "j" is unused in my code, so this is a warning in the eclipse IDE. How I can fix this?

Code:

for i,j in enumerate(my_list):

Answer 1

Just because an IDE gives you a warning that doesn't mean you have to change your code. @WillemVanOnsem gives you the necessary solution to iterating over the indexes in his comment.

Answer 2

如果只需要索引，则可以使用：

my_index = [i for i in range(len(mylist))]