here is a stub.

MANIFEST.in

+include *.py
+
+recursive-include data external_resources *.gif *.png *.css *.ico *.js
+recursive-include i18n *.pot *.po
+recursive-include migration *.py

__init__.py

+"""cubicweb-classifiedad application package
+
+classified ad
+"""

__pkginfo__.py

+# pylint: disable-msg=W0622
+"""cubicweb-classifiedad application packaging information"""
+
+modname = 'classifiedad'
+distname = 'cubicweb-classifiedad'
+
+numversion = (0, 1, 0)
+version = '.'.join(str(num) for num in numversion)
+
+license = 'LCL'
+copyright = '''Copyright (c) 2010 LOGILAB S.A. (Paris, FRANCE).
+http://www.logilab.fr -- mailto:contact@logilab.fr'''
+
+author = 'LOGILAB S.A. (Paris, FRANCE)'
+author_email = 'contact@logilab.fr'
+
+short_desc = 'classified ad'
+long_desc = '''classified ad'''
+
+web = 'http://www.cubicweb.org/project/%s' % distname
+
+
+from os import listdir as _listdir
+from os.path import join, isdir, exists
+from glob import glob
+
+THIS_CUBE_DIR = join('share', 'cubicweb', 'cubes', modname)
+
+def listdir(dirpath):
+    return [join(dirpath, fname) for fname in _listdir(dirpath)
+            if fname[0] != '.' and not fname.endswith('.pyc')
+            and not fname.endswith('~')
+            and not isdir(join(dirpath, fname))]
+
+data_files = [
+    # common files
+    [THIS_CUBE_DIR, [fname for fname in glob('*.py') if fname != 'setup.py']],
+    ]
+# check for possible extended cube layout
+for dname in ('entities', 'views', 'sobjects', 'hooks', 'schema', 'data', 'i18n', 'migration'):
+    if isdir(dname):
+        data_files.append([join(THIS_CUBE_DIR, dname), listdir(dname)])
+# Note: here, you'll need to add subdirectories if you want
+# them to be included in the debian package
+
+__depends_cubes__ = {}
+__depends__ = {'cubicweb': '>= 3.6.0'}
+__use__ = ()
+__recommend__ = ()
+

data/cubes.classifiedad.css

+/* template specific CSS */

data/cubes.classifiedad.js

+// This contains template-specific javascript
\ No newline at end of file

data/external_resources

+# -*- shell-script -*-
+###############################################################################
+#
+# put here information about external resources used by your components,
+# or to overides existing external resources configuration
+#
+###############################################################################
+
+# CSS stylesheets to include in HTML headers
+# uncomment the line below to use template specific stylesheet
+# STYLESHEETS = DATADIR/cubes.classifiedad.css
+
+BLUE_ARROW = DATADIR/blue_arrow.png
\ No newline at end of file

debian/changelog

+cubicweb-classifiedad (0.1.0-1) unstable; urgency=low
+
+  * initial release
+
+ -- 
+

debian/compat

+5

debian/control

+Source: cubicweb-classifiedad
+Section: web
+Priority: optional
+Maintainer: LOGILAB S.A. (Paris, FRANCE) <contact@logilab.fr>
+Build-Depends: debhelper (>= 5.0.37.1), python (>=2.4), python-dev (>=2.4)
+Standards-Version: 3.8.0
+
+
+Package: cubicweb-classifiedad
+Architecture: all
+Depends: cubicweb-common (>= 3.5.11)
+Description: classified ad
+ CubicWeb is a semantic web application framework.
+ .
+ classified ad
+ .
+ This package will install all the components you need to run the
+ cubicweb-classifiedad application (cube :)..

debian/copyright

+Upstream Author: 
+
+  LOGILAB S.A. (Paris, FRANCE) <contact@logilab.fr>
+
+Copyright:
+
+Copyright (c) 2010 LOGILAB S.A. (Paris, FRANCE).
+http://www.logilab.fr -- mailto:contact@logilab.fr

debian/cubicweb-classifiedad.prerm

+#!/bin/sh -e
+
+delete_pyo_pyc () {
+  find /usr/share/cubicweb/cubes/classifiedad -name "*.pyc" | xargs rm -f
+  find /usr/share/cubicweb/cubes/classifiedad -name "*.pyo" | xargs rm -f
+}
+
+
+case "$1" in
+    failed-upgrade|abort-install|abort-upgrade|disappear)
+    ;;
+    upgrade)
+    delete_pyo_pyc
+    ;;
+    remove)
+    delete_pyo_pyc
+    ;;
+    purge)
+    ;;
+
+    *)
+        echo "postrm called with unknown argument \`$1'" >&2
+        exit 1
+
+esac
+
+#DEBHELPER#

debian/rules

+#!/usr/bin/make -f
+# Sample debian/rules that uses debhelper.
+# GNU copyright 1997 to 1999 by Joey Hess.
+
+# Uncomment this to turn on verbose mode.
+#export DH_VERBOSE=1
+build: build-stamp
+build-stamp:
+	dh_testdir
+	python setup.py -q build
+	touch build-stamp
+
+clean:
+	dh_testdir
+	dh_testroot
+	rm -f build-stamp configure-stamp
+	rm -rf build
+	find . -name "*.pyc" | xargs rm -f
+	dh_clean
+
+install: build
+	dh_testdir
+	dh_testroot
+	dh_clean -k
+	dh_installdirs -i
+	python setup.py -q install --no-compile --prefix=debian/cubicweb-classifiedad/usr/
+	# remove generated .egg-info file
+	rm -rf debian/cubicweb-classifiedad/usr/lib/python*
+
+
+# Build architecture-independent files here.
+binary-indep: build install
+	dh_testdir
+	dh_testroot
+	dh_install -i
+	dh_installchangelogs -i
+	dh_installexamples -i
+	dh_installdocs -i
+	dh_installman -i
+	dh_link -i
+	dh_compress -i -X.py -X.ini -X.xml -Xtest
+	dh_fixperms -i
+	dh_installdeb -i
+	dh_gencontrol -i
+	dh_md5sums -i
+	dh_builddeb -i
+
+
+# Build architecture-dependent files here.
+binary-arch:
+
+binary: binary-indep
+.PHONY: build clean binary-arch binary-indep binary

entities.py

+"""this contains the cube-specific entities' classes
+
+:organization: Logilab
+:copyright: 2001-2010 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.
+:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
+:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
+"""
+
+from cubicweb.entities import AnyEntity
+
+class ClassifiedAd(AnyEntity):
+    __regid__ = 'ClassifiedAd'
+
+    # hierarchy #############################################################
+
+    def parent(self):
+        if self.advertise:
+            return self.advertise[0]

i18n/en.po

+msgid ""
+msgstr ""
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Generated-By: pygettext.py 1.5\n"
+"Plural-Forms: nplurals=2; plural=(n > 1);\n"
+

i18n/es.po

+msgid ""
+msgstr ""
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Generated-By: pygettext.py 1.5\n"
+"Plural-Forms: nplurals=2; plural=(n > 1);\n"
+

i18n/fr.po

+msgid ""
+msgstr ""
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Generated-By: pygettext.py 1.5\n"
+"Plural-Forms: nplurals=2; plural=(n > 1);\n"
+

migration/postcreate.py

+# postcreate script. You could setup site properties or a workflow here for example
+"""
+
+:organization: Logilab
+:copyright: 2001-2010 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.
+:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
+:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
+"""
+
+# Example of site property change
+#set_property('ui.site-title', "<sitename>")
+

migration/precreate.py

+# Instructions here will be read before reading the schema
+"""
+
+:organization: Logilab
+:copyright: 2001-2010 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.
+:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
+:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
+"""
+# You could create your own groups here, like in :
+#   create_entity('CWGroup', name=u'mygroup')

schema.py

+# cube's specific schema
+"""
+
+:organization: Logilab
+:copyright: 2001-2010 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.
+:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
+:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
+"""
+
+from yams.buildobjs import EntityType, String, Datetime, SubjectRelation, Int
+
+class ClassifiedAd(EntityType):
+    title = String(required=True, fulltextindexed=True)
+    description = String(fulltextindexed=True)
+    publication_date = Datetime()
+    url = String()
+    price = Int()
+    currency = String(default='EUR')
+    same_as = SubjectRelation('ExternalUri')
+    has_image = SubjectRelation('ExternalUri')