script.module.libtorrent is a Kodi module that makes easy import of python-libtorrent for you. Example of usage is Torrenter v2 at https://github.com/DiMartinoXBMC/plugin.video.torrenter
Add module in requires of your addon.xml::
<import addon="script.module.libtorrent"/>
Use it in any python file::
from python_libtorrent import get_libtorrent
libtorrent=get_libtorrent()