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POCan't pip install virtualenv in OS X 10.8 with brewed python 2.7
 

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  1. POCan't pip install virtualenv in OS X 10.8 with brewed python 2.7
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    <p>When trying to install virtualenv using a brewed python, I get the following error:</p> <pre><code>$ pip install virtualenv Requirement already satisfied (use --upgrade to upgrade): \ virtualenv in /Library/Python/2.7/site-packages/virtualenv-1.9.1-py2.7.egg Cleaning up... </code></pre> <p>So clearly pip is somehow looking into the system python folder instead of the brewed one in /usr/local. How can I avoid this?</p> <p>The brew doctor finds no problems, and the path priority is set ok. </p> <p>I tried to remove the virtualenv package from the system python, so I could install virtualenv with the brewed pip. But then I could not create virtualenvs, as I got this error:</p> <pre><code>$ virtualenv datatransfer/ Traceback (most recent call last): File "/usr/local/bin/virtualenv", line 5, in &lt;module&gt; from pkg_resources import load_entry_point File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py", line 2603, in &lt;module&gt; working_set.require(__requires__) File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py", line 666, in require needed = self.resolve(parse_requirements(requirements)) File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py", line 565, in resolve raise DistributionNotFound(req) # XXX put more info here pkg_resources.DistributionNotFound: virtualenv==1.9.1 </code></pre> <p>So I have not managed to avoid the system virtualenv.</p> <p>What I am doing wrong?</p>
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    1. COTake a look at this wiki page: https://github.com/mxcl/homebrew/wiki/Homebrew-and-Python. It explains how to edit your PYTHONPATH and PATH so that your system finds the brewed python first.
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    2. CO@SethMMorton The PATH is already correct, and the PYTHONPATH is empty. What I see in this wiki is that the brewed python also looks for modules at /Library/Python/2.7/site-packages. But then will the virtualenvs created with the system command in that folder use the brewed python?
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    3. COwhat happens when you type `which python` and `which pip`?
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