[jamwt]

As one of those other team members of James's, I'd profess that if it's literally less than 50 lines of code, I'm probably still faster in Python (22 years of programming python). Otherwise, once things hit 200-300 lines, I can now sort of feel the overhead of more fragile refactors and longer debug cycles kicking in. So, for me personally, it doesn't take much of a codebase before the tipping point.