Issues with Pip, Python and Virtual Env After Updating Mac 10.10 Yosemite

(big help from http://zaidox.com/os-x-mavericks-virtualenv-and-pip.html, seems this was a common problem)

Just to document the issue I had with my local pip, python and virtualenv setup after updating my Mac to 10.10 Yosemite.

A few things I saw initially:

Virtual env seemed to disappear

/usr/bin/python: No module named virtualenvwrapper
virtualenvwrapper.sh: There was a problem running the initialization hooks.
If Python could not import the module virtualenvwrapper.hook_loader,
check that virtualenv has been installed for
VIRTUALENVWRAPPER_PYTHON=/usr/bin/python and that PATH is
set properly.
jbk[~] $ setup
/usr/bin/python: No module named virtualenvwrapper
/usr/bin/python: No module named virtualenvwrapper

Pip was broken

$ pip
dyld: Library not loaded: @executable_path/../.Python
 Referenced from: /Users/jkeesh/.virtualenvs/codehs/bin/python
 Reason: image not found
Trace/BPT trap: 5

Pip referenced an old python

$ pip
-bash: /usr/local/share/python/pip: /usr/local/Cellar/python/2.7.3/Frameworks/Python.framework/Versions/2.7/Resour: bad interpreter: No such file or directory

Python current version was 2.7.6 though the old one seemed to be

2.7.jbk[~/Downloads] $ python
Python 2.7.6 (default, Sep 9 2014, 15:04:36) 
[GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.39)] on darwin
Type “help”, “copyright”, “credits” or “license” for more information.
>>>

The Fix

I had an issue in my PATH variable adding an extra path to the PATH. I removed this from my bashrc

/usr/local/share/python

Then re-installed pip and reinstalled virtual env.