centos_python_env_setup

#!/bin/bash

# Install stuff #
#################

# Install development tools and some misc. necessary packages
yum -y groupinstall "Development tools"
yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel mysql-devel libxml2-devel libxslt-devel unixODBC-devel sqlite sqlite-devel -y

# 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)
if [ ! -e ./Python-2.7.4 ]
then
   wget --no-check-certificate http://www.python.org/ftp/python/2.7.4/Python-2.7.4.tar.bz2
   tar xf Python-2.7.4.tar.bz2
fi

if [ ! -e /usr/local/bin/python2.7 ] 
then
    ( cd Python-2.7.4 && ./configure --prefix=/usr/local &&  make && make altinstall )
fi

# Install easy install


echo "[easy_install]" >> ~/.pydistutils.cfg
echo "index_url = http://pypi.douban.com/simple" >> ~/.pydistutils.cfg

mkdir ~/.pip
echo "[global]" >> ~/.pip/pip.conf
echo "index-url = http://pypi.douban.com/simple" >> ~/.pip/pip.conf

wget http://peak.telecommunity.com/dist/ez_setup.py
sed -i 's/pypi.python.org/pypi.douban.com/' ez_setup.py
python ez_setup.py && easy_install pip



# 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 frustrating.
# 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.

if [ ! -e virtualenv-1.9.1.tar.gz ]
then
    wget --no-check-certificate http://pypi.douban.com/packages/source/v/virtualenv/virtualenv-1.9.1.tar.gz#md5=07e09df0adfca0b2d487e39a4bf2270a
    tar -xvzf virtualenv-1.9.1.tar.gz 
fi
( cd virtualenv-1.9.1 && python setup.py install )

if [ ! -e virtualenvwrapper-4.0 ]
then
    wget --no-check-certificate http://pypi.douban.com/packages/source/v/virtualenvwrapper/virtualenvwrapper-4.0.tar.gz#md5=78df3b40735e959479d9de34e4b8ba15
    tar -xvzf virtualenvwrapper-*

fi
( cd virtualenvwrapper-4.0 && python setup.py install )

echo 'export WORKON_HOME=~/Envs' >> $HOME/.bashrc # Change this directory if you don't like it
source $HOME/.bashrc
mkdir -p $WORKON_HOME
echo 'source /usr/local/bin/virtualenvwrapper.sh' >> $HOME/.bashrc
source $HOME/.bashrc

echo Done!
echo Now you can do: mkvirtualenv foo --python=python2.7

# Extra stuff #
###############