Requirements Python 2.6 or 2.7. Zope Interface 3.6.0 or better (http://pypi.python.org/pypi/zope.interface) pyOpenSSL () is required for any SSL APIs. Version 0.10 or newer is required. On Windows pywin32 () is required. Build 215 or later is highly recommended for reliable operation (this is already included in ActivePython). If you would like to use Trial's subunit reporter, then you will need to install Subunit 0.0.2 or later (https://launchpad.net/subunit). Installation * Debian and Ubuntu Packages are included in the main distribution. * FreeBSD, Gentoo Twisted is in their package repositories. * Win32 Installers are available from http://twistedmatrix.com/ * Other As with other Python packages, the standard way of installing from source is: python setup.py install