Curious: what is this 500k LOC project (if you can say) and how much of that is Python? If it's an in-house codebase that's a really neat datapoint because it w

Curious: what is this 500k LOC project (if you can say) and how much of that is Python? If it's an in-house codebase that's a really neat datapoint because it would rank among the largest open-source Python projects.. Also, Traits (from Enthought) is an attempt to deal with some of the issues of typing and interfaces. It's led to some great software (the Chaco plotting package is fantastic, as is Mayavi), but I've yet to figure out how to debug a Traits error and stay sane. There is a lot of auto-configured magic that happens, and when something goes wrong the backtrace is often pages long and doesn't actually show the offending line.