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============
Python Setup
============
.. note::
This tutorial is aimed at Python 3.3. It also works with
Python 2.7.
First thing's first: we need our Python environment in ship-shape.
Pyramid encourages standard Python development practices (virtual
environments, packaging tools, logging, etc.) so let's get our working
area in place. For Python 3.3:
.. code-block:: bash
$ pyvenv-3.3 env33
$ source env33/bin/activate
$ wget https://bitbucket.org/pypa/setuptools/raw/bootstrap/ez_setup.py -O - | python
If ``wget`` complains with a certificate error, run it with:
.. code-block:: bash
$ wget --no-check-certificate
In these steps above we first made a :term:`virtualenv` and then
"activated" it, which adjusted our path to look first in
``env33/bin`` for commands (such as ``python``). We next downloaded
Python's packaging support and installed it, giving us the
``easy_install`` command-line script for adding new packages. Python
2.7 users will need to use ``virtualenv`` instead of ``pyvenv`` to make
their virtual environment.
.. note::
Why ``easy_install`` and not ``pip``? Pyramid encourages use of
namespace packages which, until recently, ``pip`` didn't permit.
Also, Pyramid has some optional C extensions for performance. With
``easy_install``, Windows users can get these extensions without
needing a C compiler.
.. seealso:: See Also: Python 3's :mod:`venv module <python3:venv>`,
the ``setuptools`` `installation
instructions <https://pypi.python.org/pypi/setuptools/0.9.8#installation-instructions>`_,
`easy_install help <https://pypi.python.org/pypi/setuptools/0.9.8#using-setuptools-and-easyinstall>`_,
and Pyramid's :ref:`Before You Install <installing_chapter>`.
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