Virtual Python Environment builder
Project description
Virtualenv
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Introduction
virtualenv is a tool to create isolated Python environments.
The basic problem being addressed is one of dependencies and versions, and indirectly permissions. Imagine you have an application that needs version 1 of LibFoo, but another application requires version 2. How can you use both these applications? If you install everything into /usr/lib/python2.7/site-packages (or whatever your platform’s standard location is), it’s easy to end up in a situation where you unintentionally upgrade an application that shouldn’t be upgraded.
Or more generally, what if you want to install an application and leave it be? If an application works, any change in its libraries or the versions of those libraries can break the application.
Also, what if you can’t install packages into the global site-packages directory? For instance, on a shared host.
In all these cases, virtualenv can help you. It creates an environment that has its own installation directories, that doesn’t share libraries with other virtualenv environments (and optionally doesn’t access the globally installed libraries either).
Release History
14.0.6 (2016-02-07)
Upgrade setuptools to 20.0
Upgrade wheel to 0.29.0
Fix an error where virtualenv didn’t pass in a working ssl certificate for pip, causing “weird” errors related to ssl.
14.0.5 (2016-02-01)
Homogenize drive letter casing for both prefixes and filenames. #858
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