Fundamental limitations of Python are responsible for most of the memory footprint and performance difference between the old official Python implementation of

Fundamental limitations of Python are responsible for most of the memory footprint and performance difference between the old official Python implementation of BitTorrent and C++ implementations like libtorrent. The kind of obsessive optimization that made uTorrent so tiny and fast is just not achievable in Python, due to things like per-object memory overhead and reference counting. I've also done audio processing projects in Python, and ended up switching to D because Python couldn't do floating point additions and multiplications across large lists fast enough.