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+============================================
+02: Python Packages for Pyramid Applications
+============================================
+
+Most modern Python development is done using Python packages, an approach
+Pyramid puts to good use. In this step we re-do "Hello World" as a
+minimum Python package inside a minimum Python project.
+
+Background
+==========
+
+Python developers can organize a collection of modules and files into a
+namespaced unit called a :ref:`package <python:tut-packages>`. If a
+directory is on ``sys.path`` and has a special file named
+``__init__.py``, it is treated as a Python package.
+
+Packages can be bundled up, made available for installation,
+and installed through a (muddled, but improving) toolchain oriented
+around a ``setup.py`` file for a
+`setuptools project <http://pythonhosted.org/setuptools/setuptools.html>`_.
+Explaining it all in this
+tutorial will induce madness. For this tutorial, this is all you need to
+know:
+
+- We will have a directory for each tutorial step as a
+  setuptools *project*
+
+- This project will contain a ``setup.py`` which injects the features
+  of the setuptool's project machinery into the directory
+
+- In this project we will make a ``tutorial`` subdirectory into a Python
+  *package* using an ``__init__.py`` Python module file
+
+- We will run ``python setup.py develop`` to install our project in
+  development mode
+
+In summary:
+
+- You'll do your development in a Python *package*
+
+- That package will be part of a setuptools *project*
+
+Objectives
+==========
+
+- Make a Python "package" directory with an ``__init__.py``
+
+- Get a minimum Python "project" in place by making a ``setup.py``
+
+- Install our ``tutorial`` project in development mode
+
+Steps
+=====
+
+#. Make an area for this tutorial step:
+
+   .. code-block:: bash
+
+    (env27)$ cd ..; mkdir package; cd package
+
+#. In ``package/setup.py``, enter the following:
+
+   .. literalinclude:: package/setup.py
+
+#. Make the new project installed for development then make a directory
+   for the actual code:
+
+   .. code-block:: bash
+
+    (env27)$ python setup.py develop
+    (env27)$ mkdir tutorial
+
+#. Enter the following into ``package/tutorial/__init__.py``:
+
+   .. literalinclude:: package/tutorial/__init__.py
+
+#. Enter the following into ``package/tutorial/app.py``:
+
+   .. literalinclude:: package/tutorial/app.py
+
+#. Run the WSGI application with:
+
+   .. code-block:: bash
+
+    (env27)$ python tutorial/app.py
+
+#. Open ``http://localhost:6543/`` in your browser.
+
+Analysis
+========
+
+Python packages give us an organized unit of project development.
+Python projects, via ``setup.py``, gives us special features when
+our package is installed (in this case, in local development mode.)
+
+In this step we have a Python package called ``tutorial``. We use the
+same name in each step of the tutorial, to avoid unnecessary re-typing.
+
+Above this ``tutorial`` directory we have the files that handle the
+packaging of this, well, package. At the moment, all we need is a
+bare-bones ``ini/setup.py``.
+
+Everything else is the same about our application. We simply made a
+Python package with a ``setup.py`` and installed it in development mode.
+
+Note that the way we're running the app (``python tutorial/app.py``) is a bit
+of an odd duck.  We would never do this unless we were writing a tutorial that
+tries to capture how this stuff works a step at a time.  It's generally a bad
+idea to run a Python module inside a package directly as a script.
+
+.. seealso:: :ref:`Python Packages <python:tut-packages>`,
+   `setuptools Entry Points <http://pythonhosted.org/setuptools/pkg_resources.html#entry-points>`_