"The twisted port involved removing almost 1,400 lines of code and didn't change the tornado API." Or, looking at it another way, you removed Tornado's simple

"The twisted port involved removing almost 1,400 lines of code and didn't change the tornado API." Or, looking at it another way, you removed Tornado's simple 1400-line core, and replaced it with a 150,000-line dependency. (Yes, I know that Tornado On Twisted doesn't depend on the entire Twisted framework. But the port does involve a lot more code in total than the original.)