[skeleton] do not import the __pkginfo__.py module to make cubes installable via setuptools When using a simple "import" statement, running 'python setup.py install' for a cube fails in a fresh virtualenv due to the fact the install of the dependencies (here cubicweb iteself) is done by the python process doing the cube's installation, so the __pkginfo__ module from the cube is already loaded (thus used) when installing cubicweb... So we apply the third technique from: https://packaging.python.org/en/latest/single_source_version.html

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Cubes

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This chapter describes how to define your own cubes and reuse already available cubes.

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.. toctree::

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   :maxdepth: 1

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   layout.rst

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   cc-newcube.rst

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   available-cubes.rst