README.md

centos_python_env_setup

Script to automate installing python 2.7 on a CentOS box. This has currently only been tested on CentOS 6.4

Usage

Usage is simple. Simply download, set executable, and run giving a path of where to install python

wget https://raw.github.com/michaelrice/centos_python_env_setup/master/centos_python_env_setup
chmod +x centos_python_env_setup
./centos_python_env_setup /usr/local/python2.7

profit

centos_python_env_setup

#!/bin/bash

set -e
# Source: http://toomuchdata.com/2012/06/25/how-to-install-python-2-7-3-on-centos-6-2/
# Install stuff #
#################
if [ -z $1 ]; then
    echo "set the prefix to install"
    echo "for example: $0 /usr/local/python2.7"
    exit
fi
# Install development tools and some misc. necessary packages
yum -y groupinstall "Development tools"
yum -y install zlib-devel  # gen'l reqs
yum -y install bzip2-devel openssl-devel ncurses-devel  # gen'l reqs
yum -y install mysql-devel  # req'd to use MySQL with python ('mysql-python' package)
yum -y install libxml2-devel libxslt-devel  # req'd by python package 'lxml'
yum -y install unixODBC-devel  # req'd by python package 'pyodbc'
yum -y install sqlite sqlite-devel  # you will be sad if you don't install this before compiling python, and later need it.
# Alias shasum to == sha1sum (will prevent some people's scripts from breaking)
echo 'alias shasum="sha1sum"' >> $HOME/.bashrc
# Install Python 2.7.4 (do NOT remove 2.6, by the way)
wget http://www.python.org/ftp/python/2.7.4/Python-2.7.4.tar.bz2
tar xf Python-2.7.4.tar.bz2 
cd Python-2.7.4
./configure --prefix=$1
make && make altinstall
# Install distribute
wget --no-check-certificate http://pypi.python.org/packages/source/d/distribute/distribute-0.6.27.tar.gz
tar xf distribute-0.6.27.tar.gz 
cd distribute-0.6.27
$1/bin/python2.7 setup.py install
# Install virtualenv and virtualenvwrapper
# Once you make your first virtualenv, you'll have 'pip' in there.
# I got bitten by trying to install a system-wide (i.e. Python 2.6) version of pip;
# it was clobbering my access to pip from within virtualenvs, and it was a bad scene.
# So these commands will install virtualenv/virtualenvwrapper the old school way,
# just so you can make yourself a virtualenv, with pip, and then do everything Python-related
# that you need to do, from in there.
wget --no-check-certificate https://pypi.python.org/packages/source/v/virtualenv/virtualenv-1.9.1.tar.gz#md5=07e09df0adfca0b2d487e39a4bf2270a
tar -xvzf virtualenv-1.9.1.tar.gz 
cd virtualenv-1.9.1
$1/bin/python2.7 setup.py install
cd ..
wget --no-check-certificate https://pypi.python.org/packages/source/v/virtualenvwrapper/virtualenvwrapper-4.0.tar.gz#md5=78df3b40735e959479d9de34e4b8ba15
tar -xvzf virtualenvwrapper-*
cd virtualenvwrapper-4.0
$1/bin/python2.7 setup.py install

echo 'export WORKON_HOME=~/Envs' >> $HOME/.bashrc # Change this directory if you don't like it
echo 'export PATH=$PATH:'$1/bin >> $HOME/.bashrc
echo "export VIRTUALENVWRAPPER_PYTHON=$1/bin/python2.7" >> $HOME/.bashrc
. $HOME/.bashrc
mkdir -p $WORKON_HOME
echo "source $1/bin/virtualenvwrapper.sh" >> $HOME/.bashrc
. $HOME/.bashrc


# Extra stuff #
###############
# Add EPEL repo (more details at cyberciti.biz/faq/fedora-sl-centos-redhat6-enable-epel-repo/)
if [ ! -f /etc/yum.repos.d/epel.repo ]; then
    echo "Looks like you dont have epel setup. Want to do that now (y/n): "
    read answer
    if [ ${answer} != "y" ]; then
        echo "Done! Now you can do: 'mkvirtualenv foo --python=python2.7'"
        exit
    fi
    rpm -Uvh http://mirror-fpt-telecom.fpt.net/fedora/epel/6/i386/epel-release-6-8.noarch.rpm
fi
echo "Done!"
echo "source your bashrc then you can do: 'mkvirtualenv foo --python=python2.7'"

This is tested and works on a fresh Rackspace cloud server using the CentOs 6.4 option, run as root and set executable.

chmod +x centos_python_env_setup
./centos_python_env_setup /usr/local/python2.7

profit