I figured out the for-loop solution but was trying to find and alternative using list comprehension… and failed. What’s wrong with this / what is the way? (error was list out of range). My sense is that the index object is looking for “i” rather than what I intend which is the first element of lst1 if it is the same as the first element of lst2.
svi = [lst1.index(i) for i in lst1 if lst1[i] == list2[i]]
Thanks for any help.