Python Virtual Environment: virtualenv

安装
sudo yum install python-virtualenv

How to use

For example, create a **env** virtual environment

virtualenv ENV

By default, the virtual environment relies on site packages in the system environment, which means that the installed third-party package in the system will also be installed in the virtual environment, if you do not want to rely on the package, you can add parameters to --no-site-packages establish a virtual environment

virtualenv --no-site-packages [虚拟环境名称]

Start the virtual environment

cd ENVsource ./bin/activate

Note that at this point the command line one more (ENV) , env is the virtual environment name, then all the modules will only be installed in the directory.

Exiting a virtual environment

deactivate

Installing a Python suite in a virtual environment

The virtualenv comes with the PIP installation tool, so the kit that needs to be installed can be run directly:

pip install [套件名称]

Python Virtual Environment: virtualenv