This is a python module consisting of extensions to the Twisted Framework.
twext is automatically retrieved by CalendarServer’s bin/develop script during its dependency resolution phase, and is stored as a sub-project of CalendarServer, along with other externally retrieved dependencies.
Alternatively, use GIT to obtain a working copy of the source code. The following command will check out the latest version of twext:
git clone https://github.com/apple/ccs-twistedextensions.git
Graphical clients which support GIT are also available, including Apple’s XCode IDE. Consult the documentation for your chosen client for information on how to check out source code.