Python:在遍历列表时删除列表元素

问题描述：

我正在遍历Python中的元素列表，对其进行一些操作，然后在满足特定条件的情况下将其删除.

I'm iterating over a list of elements in Python, do some action on it, and then remove them if they meet certain criteria.

for element in somelist:
    do_action(element)
    if check(element):
        remove_element_from_list

我应该使用什么来代替remove_element? 我曾问过类似的问题，但注意到将要对所有元素执行的do_action部分的存在，因此消除了使用过滤器的解决方案.

What should I use in place of remove_element? I have seen similar questions asked, but notice the presence of the do_action part that is to be executed for all elements and thus eliminates the solution of using filters.

答

您始终可以遍历列表的副本，从而可以自由修改原始列表:

You could always iterate over a copy of the list, leaving you free to modify the original:

for item in list(somelist):
  ...
  somelist.remove(item)

Python:在遍历列表时删除列表元素

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