Bittorrent on PyPy

Hi all,

Bittorrent now runs on PyPy! I tried the no-GUI BitTornado version (btdownloadheadless.py). It behaves correctly and I fixed the last few obvious places which made noticeable pauses. (However we know that there are I/O performance issues left: we make too many internal copies of the data, e.g. in a file.read() or os.read().)

We are interested in people trying out other real-world applications that, like the GUI-less Bittorrent, don't have many external dependencies to C extension modules. Please report all the issues to us!

The current magic command line for creating a pypy-c executable with as many of CPython's modules as possible is:

  cd pypy/translator/goal
  ./translate.py --thread targetpypystandalone.py --allworkingmodules --withmod-_rawffi --faassen

(This gives you a thread-aware pypy-c, which requires the Boehm gc library. The _rawffi module gives you ctypes support but is only tested for Linux at the moment.)