Installing specific package version with pip

I am trying to install version 1.2.2 of `MySQL_python`, using a fresh virtualenv created with the `--no-site-packages` option. The current version shown in PyPi is [1.2.3][1]. Is there a way to install the older version? I have tried: ```bash pip install MySQL_python==1.2.2 ``` However, when installed, it still shows `MySQL_python-1.2.3-py2.6.egg-info` in the site packages. Is this a problem specific to this package, or am I doing something wrong? [1]: http://pypi.python.org/pypi/MySQL-python/1.2.3