[root@khanibdev cinder]# pip install --upgrade tox==1.6.1
Downloading/unpacking tox==1.6.1
  Running setup.py egg_info for package tox
  Requested tox==1.6.1, but installing version 1.7.1
Requirement already up-to-date: virtualenv>=1.11.2 in /usr/lib/python2.6/site-packages (from tox==1.6.1)
Requirement already up-to-date: py>=1.4.17 in /usr/lib/python2.6/site-packages (from tox==1.6.1)
Requirement already up-to-date: argparse in /usr/lib/python2.6/site-packages (from tox==1.6.1)
Installing collected packages: tox
  Running setup.py install for tox
    Installing tox script to /usr/bin
    Installing tox-quickstart script to /usr/bin
Successfully installed tox
Cleaning up...
[root@khanibdev cinder]# pip install --upgrade tox==1.6.1
Downloading/unpacking tox==1.6.1
  Running setup.py egg_info for package tox
  Requested tox==1.6.1, but installing version 1.7.1
Requirement already up-to-date: virtualenv>=1.11.2 in /usr/lib/python2.6/site-packages (from tox==1.6.1)
Requirement already up-to-date: py>=1.4.17 in /usr/lib/python2.6/site-packages (from tox==1.6.1)
Requirement already up-to-date: argparse in /usr/lib/python2.6/site-packages (from tox==1.6.1)
Installing collected packages: tox
  Found existing installation: tox 1.7.1
    Uninstalling tox:
      Successfully uninstalled tox
  Running setup.py install for tox
    Installing tox script to /usr/bin
    Installing tox-quickstart script to /usr/bin
Successfully installed tox
Cleaning up...
[root@khanibdev cinder]# pip list
argparse (1.2.1)
distribute (0.6.10)
iniparse (0.3.1)
py (1.4.20)
pycurl (7.19.0)
pygpgme (0.1)
tox (1.7.1)
urlgrabber (3.9.1)
virtualenv (1.11.6)
yum-metadata-parser (1.1.2)
[root@khanibdev cinder]#