python 版本升级(CentOS) 从2.6.6升级到2.7.6

#升级前必须先安装其它依赖
yum install readline-devel sqlite-devel bzip2-devel openssl-devel gdbm-devel libdbi-devel ncurses-libs zlib-devel -y
#下载python安装包
wget https://www.python.org/ftp/python/2.7.6/Python-2.7.6.tgz
tar -zxvf Python-2.7.6.tgz
cd Python-2.7.6
./configure --prefix=/usr/local/python2.7
make && make install
make clean
make distclean
#移除旧的Python链接
mv /usr/bin/python /usr/bin/python2.6.6

ln -s /usr/local/python2.7/bin/python2.7 /usr/bin/python
#安装setuptools
cd ..
wget http://pypi.douban.com/packages/source/s/setuptools/setuptools-12.0.5.tar.gz
tar zxvf setuptools-12.0.5.tar.gz
cd setuptools-12.0.5
python setup.py build
python setup.py install
#手动设置环境变量
#vi /etc/profile
#添加如下内容：
#PY_EZ=/usr/local/python2.7
#export PATH=$PY_EZ/bin:$PATH
#source /etc/profile  # 当前终端生效，reboot后才会完全生效
#echo $PATH
#查找easy_install
#find / -name easy_install
#ln -s /usr/local/python2.7/bin/easy_install /usr/bin/easy_install
#easy_install pip
#find / -name pip
#