python 创建虚拟环境（virtualenv）

原文地址：https://www.jianshu.com/p/2645d8f2e690

另附连接：Linux环境下虚拟环境virtualenv安装和使用

virtualenv 安装

1.Install pip and Virtualenv by issuing the following commands :

 $ sudo easy_install pip
 $ pip install --upgrade virtualenv

2.Create a Virtualenv environment by issuing a command of one of the following formats:

 $ virtualenv --system-site-packages [targetDirectory] # for Python 2.7
 $ virtualenv --system-site-packages -p python3 [targetDirectory] # for Python 3.n

3.Activate the Virtualenv environment by issuing one of the following commands:

$ cd [targetDirectory]
$ source ./bin/activate      # If using bash, sh, ksh, or zsh
$ source ./bin/activate.csh  # If using csh or tcsh

The preceding source command should change your prompt to the following:

(targetDirectory)$

4.Ensure pip ≥8.1 is installed:

 (targetDirectory)$ easy_install -U pip

5.退出virtualenv

 (targetDirectory)$ deactivate

安装TensorFlow

1.Issue one of the following commands to install TensorFlow and all the packages that TensorFlow requires into the active Virtualenv environment:

 (targetDirectory)$ pip install --upgrade tensorflow      # for Python 2.7
 (targetDirectory)$ pip3 install --upgrade tensorflow     # for Python 3.n

[参考链接]

1.Tensorflow 安装指南
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