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root用户下root@ubuntu:/home/huangyong# pip install virtualenv
Requirement already satisfied (use --upgrade to upgrade): virtualenv in /usr/local/lib/python2.7/dist-packages
Cleaning up...
root@ubuntu:/home/huangyong# virtualenv python_env
New python executable in /home/huangyong/python_env/bin/python2.7
Also creating executable in /home/huangyong/python_env/bin/python
Installing setuptools, pip, wheel...done.
root@ubuntu:/home/huangyong# source ./python_env/bin/activate (切换到了我们的env环境下)
python -V 查看版本
pip list 将会列出所有安装在虚拟环境中的包
(python_env) root@ubuntu:/home/huangyong# pip install django
Collecting django
/home/huangyong/python_env/local/lib/python2.7/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:318: SNIMissingWarning: An HTTPS request has been made, but the SNI (Subject Name Indication) extension to TLS is not available on this platform. This may cause the server to present an incorrect TLS certificate, which can cause validation failures. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/security.html#snimissingwarning.
SNIMissingWarning
/home/huangyong/python_env/local/lib/python2.7/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:122: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/security.html#insecureplatformwarning.
InsecurePlatformWarning
Using cached Django-1.10.5-py2.py3-none-any.whl
Installing collected packages: django
Successfully installed django-1.10.5
(python_env) root@ubuntu:/home/huangyong#
(python_env) root@ubuntu:/home/huangyong# django-admin.py startproject mySite
(python_env) root@ubuntu:/home/huangyong# cd mySite
(python_env) root@ubuntu:/home/huangyong/mySite# python manage.py runserver
Performing system checks...
System check identified no issues (0 silenced).
You have 13 unapplied migration(s). Your project may not work properly until you apply the migrations for app(s): admin, auth, contenttypes, sessions.
Run 'python manage.py migrate' to apply them.
January 11, 2017 - 07:39:38
Django version 1.10.5, using settings 'mySite.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server with CONTROL-C.
[11/Jan/2017 07:40:09] "GET / HTTP/1.1" 200 1767
Not Found: /favicon.ico
[11/Jan/2017 07:40:09] "GET /favicon.ico HTTP/1.1" 404 1936
看到下图成功了！
2. 卸载Django
sudo pip uninstall Django
sudo apt-get autoremove
Pycharm配置虚拟环境
file--->settings--->Project:你的克隆包--->Project Interpreter(找到设置)--->AddLocal--->(找到你的 虚拟环境的位置)
简要步骤
1、安装pip
$ sudo apt-get install python-pip
2、安装virtualenv
$ sudo pip install virtualenv
3、创建一个隔离环境
$ virtualenv test
4、激活隔离环境
$ source test/bin/activate
5、我们就可以看到在命令行的前面已经加上了(test)，这个时候我们看看python所指向的路径：
$ which python
6、安装django1.5.1，不要加sudo
$ pip install Django==1.5.1
7、运行python，键入import django，回车，没报错就是安装好了。
补充
若要退出虚拟环境
$ deactivate
若要卸载pip
$ sudo apt-get remove python-pip
若要卸载virtualenv
$ sudo pip uninstall virtualenv
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原文地址：http://blog.51cto.com/xiaok007/2153123
