Python Virtual Environment virtualenv

Intention

Virtualenv can build a virtual and independent Python runtime environment, allowing individual projects to run in a separate environment from other projects.

Installation

Virtualenv is essentially a Python package, installed using PIP

Pip Install Virtualenv

Create a virtual environment under the working directory

~ in ~/testenv/bin/pythoninstalling setuptools, Pip, Wheel...done.

By default, the site-packages of the system is not included in the virtual environment, to use Add parameters

Virtualenv--system-site-packages testenv

Start

~/testenv$ source bin/~/testenv$ python-2.7.11+

Exit

(testenv) ~/testenv$ Deactivate~/testenv$

Python Virtual Environment virtualenv