CentOs6.5 更新python2.7,以及tab自动补全

#安装python2.7之前，准备工作：

yum install python-devel gcc patch readline* -y

#解压并安装：

tar xf Python-2.7.10.tar.xz
cd Python-2.7.10
sed -i 's/#readline/readline/g' Modules/Setup.dist
./configure --prefix=/usr/local/python
make && make install

#更改系统python调用

mv /usr/bin/python /usr/bin/python_old
ln -s /usr/local/python/bin/python /usr/bin/python

#更改yum程序，调用老的的python

sed -i 's/python/python_old/g' /usr/bin/yum

#shell  python tab自动补全

cat > ~/.pythonconf << EOF
import readline, rlcompleter
readline.parse_and_bind("tab: complete")
EOF

#添加环境变量

echo "export PYTHONSTARTUP=~/.pythonconf" >> ~/.bashrc
source ~/.bashrc