[py3] Let InstanceCommand.run_arg() always return an int
The caller of this method (which is method "run_args") does `max(status,
self.run_arg(appid))` and run_arg might return None if the underlying
<cmdname>_instance method returns None. On python3 max(1, None) breaks
with "TypeError: unorderable types: int() > NoneType()". So we enforce
run_arg() method to return an integer even if the underlying method
returns None.
This fixes call of "cubicweb-ctl i18ninstance" with Python3.
.. -*- coding: utf-8 -*-
.. _InstallDependencies:
Installation dependencies
=========================
When you run CubicWeb from source, either by downloading the tarball or
cloning the mercurial tree, here is the list of tools and libraries you need
to have installed in order for CubicWeb to work:
* yapps - http://theory.stanford.edu/~amitp/yapps/ -
http://pypi.python.org/pypi/Yapps2
* pygraphviz - http://networkx.lanl.gov/pygraphviz/ -
http://pypi.python.org/pypi/pygraphviz
* docutils - http://docutils.sourceforge.net/ - http://pypi.python.org/pypi/docutils
* lxml - http://codespeak.net/lxml - http://pypi.python.org/pypi/lxml
* twisted - http://twistedmatrix.com/ - http://pypi.python.org/pypi/Twisted
* logilab-common - http://www.logilab.org/project/logilab-common -
http://pypi.python.org/pypi/logilab-common/
* logilab-database - http://www.logilab.org/project/logilab-database -
http://pypi.python.org/pypi/logilab-database/
* logilab-constraint - http://www.logilab.org/project/logilab-constraint -
http://pypi.python.org/pypi/constraint/
* logilab-mtconverter - http://www.logilab.org/project/logilab-mtconverter -
http://pypi.python.org/pypi/logilab-mtconverter
* rql - http://www.logilab.org/project/rql - http://pypi.python.org/pypi/rql
* yams - http://www.logilab.org/project/yams - http://pypi.python.org/pypi/yams
* indexer - http://www.logilab.org/project/indexer -
http://pypi.python.org/pypi/indexer
* passlib - https://code.google.com/p/passlib/ -
http://pypi.python.org/pypi/passlib
If you're using a Postgresql database (recommended):
* psycopg2 - http://initd.org/projects/psycopg2 - http://pypi.python.org/pypi/psycopg2
* plpythonu extension
Other optional packages:
* fyzz - http://www.logilab.org/project/fyzz -
http://pypi.python.org/pypi/fyzz *to activate Sparql querying*
Any help with the packaging of CubicWeb for more than Debian/Ubuntu (including
eggs, buildouts, etc) will be greatly appreciated.