Python Virtualenv - No module named virtualenvwrapper.hook_loader

Question

I\'m running Mac OS 10.6.8. and wanted to install in addition to python 2.6 also python 2.7 and use python 2.7 in a new virtualenv. I executed the following steps:

I

Answer 1

This happened to me and I solved it by re-installing pip. What had happend was that which pip gave /usr/bin/pip as a result, while which python gave /usr/local/bin/python. The path for pip should be /usr/local/bin/pip. This probably broke when I updated my Python installation.

If you follow the pip documentation you can easily reinstall pip for your current working Python setup. You need to:

1. Download the get-pip.py script (directly linked from pip's documentation).
2. Run python get-pip.py.

This solved the problem for me.