http://twistedmatrix.com/
+ Installing from the Twisted source tarball works on all known supported
+ platforms, including cygwin.
+
You need the following subpackages, which are included in the default
Twisted distribution:
* core (the standard Twisted package)
* web, trial, conch
- Twisted requires zope.interface, a copy of which is included in the
- Twisted distribution. Note that Twisted does *not* require the entire Zope
- distribution, merely the much smaller zope.interface component.
+ Twisted requires that you manually install zope.interface, a copy of which
+ is included in the Twisted distribution. Note that Twisted does *not*
+ require the entire Zope distribution, merely the much smaller
+ zope.interface component.
+ OpenSSL, including development headers (cryptography library)