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Installing Python 2.7 on CentOS 6.5

Installing Python 2.7 on Centos 6.5

Centos 6.* comes with Python 2.6, but we can't just replace it with v2.7 because it's used by the OS internally (apparently) so you will need to install v2.7 (or 3.x, for that matter) along with it. Fortunately, CentOS made this quite painless with their Software Collections Repository

sudo yum update # update yum
sudo yum install centos-release-scl # install SCL 
sudo yum install python27 # install Python 2.7

To use it, you essentially spawn another shell (or script) while enabling the newer version of Python:

scl enable python27 bash

To install additional libraries, you will need to install PIP:

cd /opt/rh/python27/root/usr/bin/ # cd to the directory where SCL installs python
sudo LD_LIBRARY_PATH=$LD_LIBRARY_PATH ./easy_install-2.7 pip

once installed, you can install PIP using pip2.7, e.g.:

sudo LD_LIBRARY_PATH=$LD_LIBRARY_PATH ./pip2.7 install requests 

NOTE: if your username doesn't require root to install software, then LD_LIBRARY_PATH and PATH is set up for you automatically by scl. Also keep in mind that using SCL outside a shell (e.g., cronjobs) isn't quite straightforward. Also, using virtualenv poses a challenge as well.

Did you miss yum install -y python27

As @codeAshu mentioned, I had to use slightly modified instructions to install Python 2.7. Please see the updated gist in this fork and the differences here. Feel free to merge it.


dalegaspi commented Jun 27, 2016

i didn't see these messages (there should be notifications support for gists...) until i randomly wandered into this specific gist...thanks @crayzeewulf...i've merged your changes.

MarcGodard commented Mar 25, 2017 edited

Getting error: Not a recognized archive type: pip on step sudo LD_LIBRARY_PATH=$LD_LIBRARY_PATH ./easy_install-2.7 pip

However, it is working so it looks like it is already there.

same here, got error in last step:

[root@server bin]# sudo LD_LIBRARY_PATH=$LD_LIBRARY_PATH ./easy_install-2.7 pip
/opt/rh/python27/root/usr/bin/python2: error while loading shared libraries: cannot open shared object file: No such file or directory
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