Removing a list from a existing list

Question

Say I had a list called "list1" list1 = [1,2,3,4,5] and I had another list called "list2" list2 = [1,2,3] What would be the easiest way to take out 1,2,3 without using a loop to iterate through list2 then deleting them from list1? Thanks!

Does the following answer your question? https://stackoverflow.com/questions/6486450/python-compute-list-difference — j1-lee, May 29 '21 at 21:54
With `in` operator you can test if an item is in "list2" (but technically this is a hidden loop). — Michael Butscher, May 29 '21 at 21:56

score 2 · Accepted Answer · answered May 29 '21 at 21:56

2

That's what set() is for.

print(set(list1))

output

[1,2,3]

answered May 29 '21 at 21:56

Thavas Antonio

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Removing a list from a existing list

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