Python and excel--02 Environment virtualenv

1.virtualenv is the library used to create a Python virtual environment

#installationpip Install virtualenv#Create a virtual environmentvirtualenv new_env#F:\envs>virtualenv new_envusing Base prefix'f:\\python352'New python executableinchF:\envs\new_env\Scripts\python.exeInstalling Setuptools, Pip, Wheel...done.#use virtualenv on Windows systems to enter the directoryF:\envs>CD new_env\scripts#activating a virtual environmentF:\envs\new_env\scripts>Activate (new_env) F:\envs\new_env\Scripts>Pythonpython3.5.2 (V3.5.2:4DEF2A2901A5, June, 22:18:55) [MSC v.1900 64bit (AMD64)] on Win32type" Help","Copyright","credits" or "License"  forMore information.>>>#pip List View Library version(new_env) F:\envs\new_env\scripts>pip listdeprecation:the default format would switch to columnsinchThe future. can use--format= (legacy|columns) (orDefine a format= (Legacy|columns)inchyour pip.conf under the [List] section) to disable this warning.pip (9.0.1) Setuptools (38.5.2) Wheel (0.30.0)

2.virtualenvwrapper 是一个 virtualenv 虚拟环境的管理库

Pip Install Virtualenvwrapper-win

Virtualenvwrapper command

• To create a virtual environment:mkvirtualenv new_env
• Using Virtual environments:workon new_env
• Exit the virtual Environment:deactivate
• To delete a virtual environment:rmvirtualenv new_env
• To view all virtual environments:lsvirtualenv

Python and excel--02 Environment virtualenv