You can check yourself if you want a precise count–apart from the boot files, it is all in the 'include' folder of any release. The .py files in there are 3.2MB total, and something like 90,000 lines of code, all low quality python. I double-space almost everything, though, so by normal standards it'll be a bit more than half that. There's also a bunch of old junk in there I never deleted.