Those are called namespace packages. Zope and Plone (ab)use them > extensively. The intended usage is to break up a big, monolithic package > [0] in parts that can be distributed independently. To implement a > namespace package, you need an empty __init__.py file with only these > lines [1]: > > from pkgutil import extend_path > __path__ = extend_path(__path__, __name__) > > But think carefully if you really need namespace packages; they solve a > specific problem, aren't a general purpose technique. See [2] for a > discussion. > > [0] Think of a huge behemoth with a "Z O P E" sign on both sides :) > [1] http://docs.python.org/library/pkgutil.html > [2] http://weblion.psu.edu/news/are-we-overusing-namespace-packages > > Hm.. We are using pkg_resources.declare_namespace(__name__) but I think pkgutil is much better. And we are using buildout so the omelette might help me. Link [2] very interesting. Thank you, Gabrial.
-- Andrew Degtiariov DA-RIPE
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