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POInstall pip and virtualenv, a chicken and the egg dilemma?
 

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  1. POInstall pip and virtualenv, a chicken and the egg dilemma?
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    <p>I've already been using pip and virtualenv (and actually sometimes still prefer a well organized combination through an SVN repository, wise usage of svn:externals, and dynamic sys.path).</p> <p>But this time for a new server installation I'd like to do things in the right way.</p> <p>So I go to the <a href="http://www.pip-installer.org/en/latest/installing.html" rel="nofollow noreferrer">pip installation page</a> and it says:</p> <blockquote> <p>The recommended way to use pip is within virtualenv, since every virtualenv has pip installed in it automatically. This does not require root access or modify your system Python installation. [...]</p> </blockquote> <p>Then I go to the <a href="http://www.virtualenv.org/en/latest/index.html#installation" rel="nofollow noreferrer">virtualenv installation page</a> and it suggests:</p> <blockquote> <p>You can install virtualenv with pip install virtualenv, or the latest development version with pip install virtualenv==dev. You can also use easy_install [...]</p> </blockquote> <p>And pip is supposed to replace easy_install, of course :)</p> <p>Granted, they both explain all alternative ways to install.</p> <p>But... <strong>which one should go first?</strong> And <strong>should I favor systemwide pip or not</strong>?</p> <p>I see a main reason to ponder over, but there might be others</p> <ul> <li>do I want to facilitate life for all users of the box, or is this a server targeted to one single <em>user</em> running some services?</li> </ul> <p>If I want everybody to have a virtual env available I might just install a system wide pip (eg. with ubuntu do <code>sudo aptitude install python-pip</code> then use it to install virtualenv <code>sudo pip install virtualenv</code>).</p> <p><strong>edit</strong> another reason to ponder over: <a href="http://www.doughellmann.com/projects/virtualenvwrapper/" rel="nofollow noreferrer">virtualenvwrapper</a> install instructions (but not the <a href="http://www.doughellmann.com/docs/virtualenvwrapper/" rel="nofollow noreferrer">docs</a>) say:</p> <blockquote> <p>Note In order to use virtualenvwrapper you must install virtualenv separately.</p> </blockquote> <p>not exactly sure what "separately" mean there (i never noticed).</p> <p>Otherwise, which one should go first, and does it really make a difference or not?</p> <h2>Related:</h2> <p>The closest question (and answers) is the first of the following (in particular see @elarson answer), the second looks overly complicated:</p> <ul> <li><a href="https://stackoverflow.com/questions/5585875/what-is-the-official-preferred-way-to-install-pip-and-virtualenv-systemwide/#5598635">What is the official &quot;preferred&quot; way to install pip and virtualenv systemwide?</a></li> <li><a href="https://stackoverflow.com/questions/4324558/whats-the-proper-way-to-install-pip-virtualenv-and-distribute-for-python/4325047#4325047">What&#39;s the proper way to install pip, virtualenv, and distribute for Python?</a></li> <li><a href="https://stackoverflow.com/questions/4986896/step-by-step-setting-up-python-with-pip-and-virtualenv">Step by step setting up python with pip and virtualenv?</a></li> <li><a href="https://stackoverflow.com/questions/9235212/system-pip-instead-of-virtualenv-pip-by-default">System PIP instead of virtualenv PIP by default?</a></li> </ul> <p>but I feel it all fail at answering my question in full: systemwide vs. local, but also should pip or virtualenv go first (and why do they send each one to the other to start with!!!)</p>
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