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@@ -3,23 +3,22 @@
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Installing Python 2 on Linux
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============================
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The latest versions of CentOS, Fedora, Redhat Enterprise (RHEL) and Ubuntu
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The latest versions of CentOS, Red Hat Enterprise Linux (RHEL) and Ubuntu
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**come with Python 2.7 out of the box**.
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To see which version of Python you have installed, open a command prompt and run
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.. code-block:: console
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$ python --version
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$ python2 --version
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Some older versions of RHEL and CentOS come with Python 2.4 which is
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unacceptable for modern Python development. Fortunately, there are
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`Extra Packages for Enterprise Linux`_ which include high
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quality additional packages based on their Fedora counterparts. This
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repository contains a Python 2.6 package specifically designed to install
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side-by-side with the system's Python 2.4 installation.
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However, with the growing popularity of Python 3, some distributions, such as
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Fedora, don't come with Python 2 pre-installed. You can install the ``python2``
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package with your distribution package manager:
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.. _Extra Packages for Enterprise Linux: http://fedoraproject.org/wiki/EPEL
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.. code-block:: console
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$ sudo dnf install python2
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You do not need to install or configure anything else to use Python. Having
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said that, I would strongly recommend that you install the tools and libraries
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@@ -22,6 +22,23 @@ If you're using another version of Ubuntu (e.g. the latest LTS release), we reco
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$ sudo apt-get update
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$ sudo apt-get install python3.6
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If you are using other Linux distribution, chances are you already have Python 3
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pre-installed as well. If not, use your distribution's package manager.
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For example on Fedora, you would use `dnf`:
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.. code-block:: console
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$ sudo dnf install python3
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Note that if the version of the ``python3`` package is not recent enough
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for you, there may be ways of installing more recent versions as well,
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depending on you distribution. For example installing the ``python36`` package
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on Fedora 25 to get Python 3.6. If you are a Fedora user, you might want
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to read about `multiple Python versions available in Fedora`_.
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.. _multiple Python versions available in Fedora: https://developer.fedoraproject.org/tech/languages/python/multiple-pythons.html
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Working with Python 3
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---------------------
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@@ -59,6 +76,17 @@ To see if pip is installed, open a command prompt and run
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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.
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Note that on some Linux distributions including Ubuntu and Fedora the ``pip``
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command is meant for Python 2, while the ``pip3`` command is meant for Python 3.
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.. code-block:: console
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$ command -v pip3
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However, when using virtual environments (described bellow), you don't need to
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care about that.
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Virtual Environments
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--------------------
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@@ -29,7 +29,7 @@ You can do this easily by running the following in ``powershell``:
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.. code-block:: console
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[Environment]::SetEnvironmentVariable("Path", "$env:Path;C:\Python27\;C:\Python27\Scripts\", "User")
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[Environment]::SetEnvironmentVariable("Path", "$env:Path;C:\Python36\;C:\Python36\Scripts\", "User")
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This is also an option during the installation process.
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@@ -24,4 +24,4 @@ for development purposes, as well as setuptools, pip and virtualenv.
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- :ref:`Python 2 on MacOS <install-osx>`.
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- :ref:`Python 2 on Microsoft Windows <install-windows>`.
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- :ref:`Python 2 on Ubuntu Linux <install-linux>`.
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- :ref:`Python 2 on Linux <install-linux>`.
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