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安装virtualenv,可以虚拟多个python版本的环境
1、安装epel源
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| [iyunv@vm01 ~]# yum install epel-release -y
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2、安装python-virtualenv
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| [iyunv@vm01 ~]# yum install python-virtualenv -y
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3、创建virtualenv环境
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| [iyunv@vm01 ~]# mkdir ~/.virtualenv
[iyunv@vm01 .virtualenv]# virtualenv --python=/home/python27/bin/python pyweb
Running virtualenv with interpreter /home/python27/bin/python
New python executable in pyweb/bin/python
Installing Setuptools..............................................................................................................................................................................................................................done.
Installing Pip.....................................................................................................................................................................................................................................................................................................................................done.
[iyunv@vm01 .virtualenv]# source ./pyweb/bin/activate
(pyweb)[iyunv@vm01 .virtualenv]#
(pyweb)[iyunv@vm01 .virtualenv]#
#出现(pyweb)说明你已经进入虚拟环境了
#进入虚拟环境
#source ~/.virtualenv/pyweb/activate
#
#退出虚拟环境
(pyweb)[iyunv@vm01 .virtualenv]# deactivate
[iyunv@vm01 .virtualenv]#
(pyweb)[iyunv@vm01 pyweb]# python --version
Python 2.7.11
(pyweb)[iyunv@vm01 pyweb]#
(pyweb)[iyunv@vm01 pyweb]# deactivate
[iyunv@vm01 .virtualenv]# virtualenv pyweb1
New python executable in pyweb1/bin/python
Installing Setuptools..............................................................................................................................................................................................................................done.
Installing Pip.....................................................................................................................................................................................................................................................................................................................................done.
[iyunv@vm01 .virtualenv]#
[iyunv@vm01 .virtualenv]# source pyweb1/bin/activate
(pyweb1)[iyunv@vm02 .virtualenv]# python --version
Python 2.6.6
(pyweb1)[iyunv@vm01 .virtualenv]#
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#完成了!
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