  envlist =
         py27-{flake8,docs},
         {py26,py27}-django14,
         {py26,py27,py32,py33,py34}-django{15,16},
         {py27,py32,py33,py34}-django{17,18alpha}
  
  [testenv]
  commands = ./runtests.py --fast
  setenv =
         PYTHONDONTWRITEBYTECODE=1
 
</s> remove        django18alpha: https://www.djangoproject.com/download/1.8b1/tarball/
 </s> add        django18beta: https://www.djangoproject.com/download/1.8b1/tarball/ </s> remove     - TOX_ENV=py34-django18alpha
    - TOX_ENV=py33-django18alpha
    - TOX_ENV=py32-django18alpha
    - TOX_ENV=py27-django18alpha
 </s> add     - TOX_ENV=py34-django18beta
    - TOX_ENV=py33-django18beta
    - TOX_ENV=py32-django18beta
    - TOX_ENV=py27-django18beta
       {py27,py32,py33,py34}-django{17,18beta}
  envlist =
         py27-{flake8,docs},
         {py26,py27}-django14,
         {py26,py27,py32,py33,py34}-django{15,16},
       {py27,py32,py33,py34}-django{17,18beta}
  
  [testenv]
  commands = ./runtests.py --fast
  setenv =
         PYTHONDONTWRITEBYTECODE=1
keep keep keep keep replace keep keep keep keep keep
 Upgrade testing env name to django18beta 
tox.ini