Pipelines Framework

  A Zope 3 package which allows a site developer to specify a series
  of "filter" operations as a "pipeline".  Each filter is a function or
  callable which takes an "context" object and a "state" object;  the
  state object allows the filters to assign attributes to it, which may
  not be possible with the context object (e.g., it might be a new-style
  class with slots).


Installing the Package

  For use outside Zope, the standard distutils dance
  applies::

    $ /path/to/python setup.py install

  For use within Zope, you should install the package either to
  your 'site-packages' directory (as above) or to the 'lib/python'
  directory of your instance, e.g.::

    $ /path/to/python setup.py install \
        --install-lib=/path/to/instance/lib/python

  You then need to create ZCML which creates your pipelines, and registers
  them as utilities and / or event subscribers.  (see the file,
  'example/configure.zcml' for more details).