This says I want to make mylist be a list where each element of the list (called value here) comes from doing a for loop on range, given the parameters 1, and 20.
If you want to change how each element of this list is, you do it in the first bit on “value”
So you could do
mylist = [value*5 for value in range(1,20)] //5,10,15,…,95 (not 100, because ranges go up to
the last item, not including it (non-inclusive))