How to install the latest version of Python on Cent.OSThis tutorial will show you how to install the latest version of Python 2 and Python 3 on Cent.OS by compiling from source.The examples below are for Python 2.Python 3. 6. 3, but the procedure is the same for any modern version of Python.If you are using Cent.The bewildering choice and the ever increasing number of Linux distributions can be confusing for those who are new to Linux.This is why this page was created.Reddit user Toweringhorizon painstakingly assembled the drawing To a Little Radio using MS Paint tools like the oil brush, stretching the medium while.OS 6 you can use this tutorial to install both Python 2.Python 3. 6. x. For Cent.OS 7 only the Python 3.Warning Do not install Python 2.Cent. OS 7 using these instructions.Your system will end up having two different python.This will likely cause difficult to diagnose problems.This tutorial should work for all versions of Cent.OS 6 and Cent. OS 7, and it will probably work on the corresponding RHEL distributions as well.I have verified it on Cent.NN_x4nDkrVQ/T36iq_GlaeI/AAAAAAAAAB8/FplA8C9-rBw/s1600/centos-gnome.png' alt='Install Firefox Using Yum Linux Wiki' title='Install Firefox Using Yum Linux Wiki' />35 Responses to CheckPoint SNX install instructions for major Linux distributions.Pingback Checkpont SNX on Ubuntu 14.LTS Trusty Tahr kenfallon.OS 6. 9 6. 4 bit and Cent.OS 7 1. 61. 1 6. This tutorial is meant for people that are comfortable with compiling and installing applications from source.What is the problemCent.OS ships with Python as a critical part of the base system.Because it is a critical part it is not getting updated, other than to plug security vulnerabilities.The lack of updates means that Cent.OS 6 users are stuck with Python 2.August 2. 01. 0, and Cent.OS 7 users are stuck with Python 2.May 2. 01. 3. Solving the problem.Utilities such as yum will break if the default Python interpreter is upgraded or replaced.The trick is to install new versions of Python in usrlocal or some other non standard location so that they can live side by side with the system version.Things to consider.Before you compile and install Python there are a few things you should know andor consider Unicode.Python has a long and complicated history when it comes to Unicode support.Unless you have very specific reasons you should configure Python 2.UTF 3. 2 support.This increases memory usage but improves compatibility.In Python 3. 3 the Unicode support has been completely rewritten and strings are automatically stored using the most efficient encoding possible.You enable UTF 3.Python 2. 7 by passing enable unicodeucs.Shared library. You should compile Python as a shared library.All modern Linux distros ship with Python compiled as a shared library, and there are third party tools such as modwsgi and Blender that wont work without it.To make sure the executable can find its shared library you need to pass some additional flags to the configure command LDFLAGS Wl, rpath usrlocallib.Use make altinstall to prevent problems.It is critical that you use make altinstall when you install your custom version of Python.If you use the normal make install you will end up with two different versions of Python in the filesystem both named python.This can lead to problems that are very hard to diagnose.Preparations install prerequisites.In order to compile Python you must first install the development tools and a few extra libs.The extra libs are not strictly needed to compile Python but without them your new Python interpreter will be quite useless.Execute all the commands below as root either by temporarily logging in as root or by using sudo.Start by making sure your system is up to date.Compilers and related tools.Libraries needed during compilation to enable all features of Python.If you are on a clean minimal install of Cent.OS you also need the wget tool.Start by making sure your system is up to date yum update Compilers and related tools yum groupinstall ydevelopment tools Libraries needed during compilation to enable all features of Python yum install yzlib devel b If you are on a clean minimal install of Cent.OS you also need the wget tool yum install ywget.Download, compile and install Python.Here are the commands to download, compile and install Python.Python 2. 7. 1. 4.Python 2. 7. 1. 4.Python 2. 7. 1. 4.Python 2. 7. 1. 4.LDFLAGS Wl, rpath usrlocallib.Python 3. 6. 3. wget http python.Python 3. 6. 3. tar.Python 3. 6. 3. tar.Python 3. 6. 3. configure prefixusrlocal enable shared LDFLAGS Wl, rpath usrlocallib.Python 2. 7. 1. 4 wget http python.Python 2. 7. 1. 4.Python 2. 7. 1. 4.Python 2. 7. 1. 4.LDFLAGS Wl, rpath usrlocallibmake makealtinstall Python 3.Python 3. 6. 3. tar.Python 3. 6. 3. tar.Python 3. 6. 3. configure prefixusrlocal enable shared LDFLAGS Wl, rpath usrlocallibmake makealtinstall.After running the commands above your newly installed Python interpreter will be available as usrlocalbinpython.The system version of Python 2.You might also want to strip symbols from the shared library to reduce the memory footprint.Strip the Python 2.Strip the Python 3.Strip the Python 2.Strip the Python 3.Installupgrade pip, setuptools and wheel.Each Python interpreter on your system needs its own install of pip, setuptools and wheel.The easiest way to install or upgrade these packages is by using the get pip.First get the script.Then execute it using Python 2.Python 3. 6. python.With pip installed you can now do things like this.First get the script wget https bootstrap.Then execute it using Python 2.Python 3. 6 python.With pip installed you can now do things like this pip.The packages will end up in usrlocallibpython.X. Ysite packages where X.Y is the Python version.Whats next If you are using Python 2.I strongly recommend that you install virtualenv and learn how to use it.Virtualenv makes it possible to create isolated Python environments.If you are using Python 3.Each isolated Python environment also called sandbox can have its own Python version and packages.This is very useful when you work on multiple projects or on different versions of the same project.Create your first isolated Python environment.Install virtualenv for Python 2.Use the built in functionality in Python 3.Check the system Python interpreter version.This will show Python 2.Activate the my. 27project sandbox.Check the Python version in the sandbox it should be Python 2.Deactivate the sandbox.Activate the my. 36project sandbox.Check the Python version in the sandbox it should be Python 3.Deactivate the sandbox.Install virtualenv for Python 2.Use the built in functionality in Python 3.Check the system Python interpreter version python version This will show Python 2.Activate the my. 27project sandbox source my.Check the Python version in the sandbox it should be Python 2.Deactivate the sandbox deactivate Activate the my.Check the Python version in the sandbox it should be Python 3.Deactivate the sandbox deactivate.Changelog. 20. 17 1.Examples updated with Python 2.Examples updated with Python 3.Examples updated with Python 3.Add warning about not installing Python 2.Cent. OS 7 since it already has 2.Examples updated with Python 2.Python 3. 6. 0. Mention that this also works for installing Python 3.Cent. OS 7. Added expat devel to the list of prerequisites.Removed ldconfig instructions.Added instructions for stripping the shared libraries.Changed the instructions for pipsetuptools to use the get pip.Examples updated with Python 3.The Python versions used in the examples have been updated to 2.The list of library prerequisites has been extended so that more features are compiled into Python.New parameters for compiling Python with a shared library and for enabling Unicode UTF 3.Python 2. 7 and Python 3.Instructions for installing and using setuptools, pip, virtualenv and pyvenv have been addedupdated.How to Install Fedora with Pictures1.Download the live image from the fedoraproject website.If you are a KDE Fan, go here. Canon Rebel Time Lapse Software Mac . Burn the. iso image to a CD, DVD or a USB stick.Make sure that you write it at a slow speed so that nothing gets broken in the process.Change the BIOS settings.If you are using a live USB, you might need to go into your BIOS and change the boot priority in order to boot from your USB.You can access your computers BIOS by pressing F2 or Delete on most computers when the computer is booting up.If you are using a CD or DVD, ignore this step as generally CDs are first in boot priority.Be sure to select Live Drive when the option screen first appears.If you select to install it, it can potentially delete everything from your system.Explore the system.The most notable thing about you should toy with is the window manager which allows you to see pretty cool effects.You should also explore around the applications already installed in the OS and see what else is available with their package manager.Install the live image to your hard drive.If you have made the decision to install Linux on your system, click on the Install to Hard drive icon on the workspace.Click on next when the installer starts and then select your keyboard layout.Choose the host name.It can be left as is or you can enter in the name you desire.That is going to be the name for the computer.Then click on next.Enter your root password for the system.Make sure that the password is something hard for others to guess the security of your system depends on it.Choose the mode of installation.You could. Use entire drive.As the title says, Fedora would clear off all the data on your hard drive and use the complete space for its installation.But beware that you could lose all data on your drive.Use free space. If you have unallotted space on your hard drive, all that space is used for Fedora installation.Replace existing Linux System.If you are sure that you are running another Linux distribution and are quite keen to remove it, use this option and click next.Shrink current system.This option allows you to shrink any of the partitions so as to install Fedora.Create Custom Layout.Allows you to create and delete partitions manually.Experienced users only.Choose one which suits you the most and click next.Confirm by clicking on write changes to disk.Wait for it to complete the install.After this installation starts, it will take approximately take 5 1.Re boot the computer when the installation is done.Go to System Shut Down and make sure to remove your live CD from the CD drive or your USB drive from the USB port.Click on forward on the first boot wizard and read and accept the license agreement.Click on forward again.At the Create User prompt, enter the user name you desire, your full name, and your password.Set your date and time, then click on the Network Time Protocol tab.With the network time protocol NTP, your computer can fetch the current time from a time server over the internet, so you do not have to adjust the time every time DST goes into or out of effect.Select enable network time protocol and click forward.Optional Send details about your hardware to the Fedora Project to further help them develop the software according to hardware specifications.Log in and enter your password and you can now call yourself a Fedora user.This is how your Fedora desktop will look.
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