使用del python时停止列表更新 [英] stop list updating when using del python

问题描述

我有一个列表，我想从中删除某些元素 我创建了一个for循环，并且在此for循环中放置了我的列表[i]

I have a list where i want to delete certain elements from I have created a for loop and in this for loop have put del my list[i]

prule是一个字符串列表，其中包含数字，例如从0到159大小为11154

prule is a list of strings containing things like numbers as strings from 0 to 159 its size 11154

def getind(li)
    ret = {}
    for i, x in enumerate(li):
        if x not in ret:
            ret[x] = []
        ret[x].append(i)
    return ret
dups = getind(prule)
for n in dups.get('159',[]):
    del rulelines[n]

一段时间后，我猜是因为该列表已更新.有什么我可以使用的，所以直到for循环完成之前它都不会更新

After a while of doing this list assignment index out of range which I am guessing is because the list gets updated. Is there anything I can use so it doesn't get updated until the for loop is finished

推荐答案

我已在答案中更正了此处

dups = getind(prules)
indexes = dups.get('156',[])
rulelines = [rulelines[i] for i in range(len(rulelines[:])) if i not in indexes]

应该可以解决您的问题.

Should be what solves your problem.

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