yum install zlib zlib-devel readline-devel sqlite-devel bzip2-devel openssl-devel gdbm-devel libdbi-devel ncurses-libs kernel-devel libxslt-devel libffi-devel python-devel mysql-devel zlib-devel mysql-server sshpass -y

wget http://mirrors.sohu.com/python/2.7.11/Python-2.7.11.tgz

tar -xzvf Python-2.7.11.tgz

cd Python-2.7.11

./configure --prefix=/data/soft/python2.7

make

make install

# 备份python2.6文件：

mv /usr/bin/python /usr/bin/python2.6.6  

#

vim /usr/bin/yum

将文件头部的

#!/usr/bin/python

改成

#!/usr/bin/python2.6.6

vim /root/.bash_profile

# 修改内容如下：

PYTHON_HOME=/data/soft/python2.7

export PYTHON_HOME

PATH=$PYTHON_HOME/bin:$PATH:$HOME/bin

export PATH

# 保存退出

source /root/.bash_profile # 或者重新登录

# 验证python版本：

[root@VM_128_212_centos opt]# python

Python 2.7.11 (default, Jul 24 2017, 11:12:15)

[GCC 4.4.7 20120313 (Red Hat 4.4.7-18)] on linux2

Type "help", "copyright", "credits" or "license" for more information.

>>> exit();

[root@VM_128_212_centos opt]# which python

/data/soft/python2.7/bin/python

[root@VM_128_212_centos opt]#

wget --no-check-certificate  https://pypi.python.org/packages/f7/94/eee867605a99ac113c4108534ad7c292ed48bf1d06dfe7b63daa51e49987/setuptools-28.0.0.tar.gz#md5=9b23df90e1510c7353a5cf07873dcd22

tar -xzvf setuptools-28.0.0.tar.gz

cd setuptools-28.0.0

python  setup.py  install

wget --no-check-certificate https://github.com/pypa/pip/archive/1.5.5.tar.gz -O pip-1.5.5.tar.gz

tar -xzvf pip-1.5.5.tar.gz

cd pip-1.5.5/

python setup.py install

# ipython安装需要升级pip到9.0.1以上：

pip install --upgrade pip

# 安装ipython：

pip install ipython

# 验证ipython：

pip list

#进入 ipython

[root@VM_128_212_centos bin]# ipython

/data/soft/python2.7/lib/python2.7/site-packages/IPython/core/history.py:228: UserWarning: IPython History requires SQLite, your history will not be saved

warn("IPython History requires SQLite, your history will not be saved")

Python 2.7.11 (default, Jul 24 2017, 11:12:15)

Type "copyright", "credits" or "license" for more information.

IPython 5.4.1 -- An enhanced Interactive Python.

? -> Introduction and overview of IPython's features.

%quickref -> Quick reference.

help -> Python's own help system.

object? -> Details about 'object', use 'object??' for extra details.

In [1]:

# 安装虚拟环境：
pip install virualenv

# 创建虚拟环境：

virtualenv web99

[root@VM_128_212_centos test]# virtualenv web99

New python executable in /data/test/web99/bin/python

Installing setuptools, pip, wheel...done.

# 进入虚拟环境:

cd web99/bin/

source activate

[root@VM_128_212_centos bin]# source activate

(web99) [root@VM_128_212_centos bin]# python

Python 2.7.11 (default, Jul 24 2017, 11:12:15)

[GCC 4.4.7 20120313 (Red Hat 4.4.7-18)] on linux2

Type "help", "copyright", "credits" or "license" for more information.

>>> exit()

(web99) [root@VM_128_212_centos bin]# ls

activate      activate.fish     easy_install      pip   pip2.7  python-config  python2.7

activate.csh  activate_this.py  easy_install-2.7  pip2  python  python2        wheel

#  退出虚拟环境：

deactivate