centos 安装配置python虚拟环境、pip

1.安装pip包安装工具

# 系统默认源没有pip安装包

[root@localhost python]# yum install python-pip

Loaded plugins: fastestmirror

Loading mirror speeds from cached hostfile

* base: repos.dfw.quadranet.com

* extras: sjc.edge.kernel.org

* updates: mirror.hmc.edu

No package python-pip available.

Error: Nothing to do

# 安装epel源

[root@localhost python]# yum -y install epel-release

# 再次安装

[root@localhost python]# yum install python-pip

.....

Installed:

python2-pip.noarch 0:8.1.2-6.el7

Complete!

# 安装成功

2.安装virtualenv

2.1 使用pip安装virtualenv

[root@localhost python]# pip install virtualenv

如果提示You should consider upgrading via the 'pip install --upgrade pip' command.

就执行pip install --upgrade pip更新后再安装即可

2.2 使用yum安装virtualenv

[root@localhost python]# yum install python-virtualenv

3.配置python虚拟环境

# 创建名为env1的虚拟环境

[root@localhost python]# virtualenv env1

# 进入虚拟环境

[root@localhost python]# source env1/bin/activate

(env1) [root@localhost python]#

# 退出虚拟环境

(env1) [root@localhost python]# deactivate

[root@localhost python]#