Different versions of python-requests on identical systems

Different versions of python-requests on identical systems

I have two VMs, both running Ubuntu 12.04.3 LTS
$ cat /etc/issue
Ubuntu 12.04.3 LTS \n \l
And I have installed python-requests through apt-get on both systems.
However, on one VM I have version 1.2.3 and the other 0.8.2..
>>> requests.__file__
'/usr/local/lib/python2.7/dist-packages/requests/__init__.pyc'
>>> requests.__version__
'1.2.3'
The other system:
>>> requests.__file__
'/usr/lib/python2.7/dist-packages/requests/__init__.pyc'
>>> requests.__version__
'0.8.2'
How can this be? What might I have done that caused this?
I can see that the file indicates that the newer version is located in
/usr/local, can that give any hint of the problem?