Delete an item from a list by match not index

Question

I have a nested list that looks like this:

lst = [[1,2,3],["a","b","c"],[4,5,6]]

I would like to delete an item from this list by matching, not by index. For example, how can I delete [4, 5, 6] ?

Answer 1

You could just use lst.remove(...) :

lst = [[1,2,3],["a","b","c"],[4,5,6]]
lst.remove([4,5,6])
print lst

Output:

[[1, 2, 3], ['a', 'b', 'c']]

Answer 2

如果你想删除多个匹配项（ lst.remove只会删除第一个匹配项），那么通常更容易使用list-comp重新创建没有你想要的元素的列表...

lst = [el for el in lst if el != [4,5,6]]