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Merge pull request #591 from edent/patch-2

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Improve documentation for Linux Installation
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Ian Cordasco
2015-10-09 15:54:15 -05:00
parent cc88e4b483 bdd0c0c027
commit a4dee3916f
1 changed files with 17 additions and 14 deletions
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docs/starting/install/linux.rst
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@@ -6,6 +6,13 @@ Installing Python on Linux
The latest versions of Ubuntu and Fedora **come with Python 2.7 out of the box**.
The latest versions of Redhat Enterprise (RHEL) and CentOS come with Python 2.6.
To see which version of Python you have installed, open a command prompt and run
.. code-block:: console
$ python --version
Some older versions of RHEL and CentOS come with Python 2.4 which is
unacceptable for modern Python development. Fortunately, there are
`Extra Packages for Enterprise Linux`_ which include high
@@ -18,32 +25,28 @@ side-by-side with the system's Python 2.4 installation.
You do not need to install or configure anything else to use Python. Having
said that, I would strongly recommend that you install the tools and libraries
described in the next section before you start building Python applications
for real-world use. In particular, you should always install Setuptools, as
for real-world use. In particular, you should always install Setuptools and pip, as
it makes it much easier for you to use other third-party Python libraries.
Setuptools & Pip
----------------
The most crucial third-party Python software of all is Setuptools, which
extends the packaging and installation facilities provided by the distutils
in the standard library. Once you add Setuptools to your Python system you can
download and install any compliant Python software product with a single
command. It also enables you to add this network installation capability to
your own Python software with very little work.
The two most crucial third-party Python packages are `setuptools <https://pypi.python.org/pypi/setuptools>`_ and `pip <https://pip.pypa.io/en/stable/>`_.
To obtain the latest version of Setuptools for Linux, refer to the documentation
available here: `unix-setuptools <https://pypi.python.org/pypi/setuptools#unix-wget>`_
Once installed, you can download, install and uninstall any compliant Python software
product with a single command. It also enables you to add this network installation
capability to your own Python software with very little work.
The new ``easy_install`` command you have available is considered by many to be
deprecated, so we will install its replacement: **pip**. Pip allows for
uninstallation of packages, and is actively maintained, unlike easy_install.
Python 2.7.9 and later (on the python2 series), and Python 3.4 and later include
pip by default.
To install pip, simply open a command prompt and run
To see if pip is installed, open a command prompt and run
.. code-block:: console
$ easy_install pip
$ command -v pip
To install pip, `follow the official pip installation guide <https://pip.pypa.io/en/latest/installing/>`_ - this will automatically install the latest version of setuptools.
Virtual Environments
--------------------