Best practice for upgrading Python modules
You have installed packages under your operating system Python library. This is big no no. What you should have done is to create an isolated, disposable, Python environment with virtualenv tool:
This way, when you upgrade your packages or need to get rid of them you can always reset the state of all of your Python packages by simply deleting the environment and creating new one.
Python packages installed via pip or easy_install commands are easy to install, but impossible to uninstall...
But when the damage has already happened you nede to manually try to clean up /Library/Python/2.7/site-packages/ by deleting files by and trying not to destroy your system Python in the process.