Well, rewriting a 80+ line comprehension as an 80+ line series of nested loops and conditionals wouldn't increase readability in my opinion. What would make it

Well, rewriting a 80+ line comprehension as an 80+ line series of nested loops and conditionals wouldn't increase readability in my opinion. What would make it easier to read is to divide the computation into several smaller steps, which could be done either with several comprehensions or several loops.