利用virtualenv构建开发环境

1. 选择虚拟环境中使用的python interpreter

   virtualenv -p PYTHON_EXE ENV_DIR

   对于windows平台

   You need to specify the python.exe file.

   virtualenv -p C:\Python27\python.exe myenv

2. 激活虚拟环境

   对于windows平台，在CMD中

   \path\to\env\Scripts\activate

   

3. 在虚拟环境中运行python即运行之前制定的python interpreter，运行pip即将package安装到虚拟环境中的\Lib\site-packages中

4. 在虚拟环境中运行python file

   ENV\Scripts\ is created, where executables live - noticeably a new python. Thus running a script with \path\to\ENV\Scripts\python would run that script under this virtualenv’s python.

5. 关闭虚拟环境

   Removing a virtual environment is simply done by deactivating it and deleting the environment folder with all its contents:

   (TourWebENV) C:\Users\gzc\PycharmProjects\TourWebENV>deactivate

6. 在Pycharm IDE中也可以直接构建虚拟环境及在虚拟环境中安装包

   creating-virtual-environment

   installing-uninstalling-and-upgrading-packages