i am trying to make well.. a raycaster
i tried to generate a map from a list by using a for loop and an if check if the item determined by w and h is 1 (a.k.a a wall)
but it returns an error stating (hmm.. expecting a list but got a list)
help 
You're going to have to post a project link.
here
solved!
my dumb me forgot that lists starts with 1, not 0
but atleast i figured it out
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