Add support for python 3.3 in tox

And update associated documentation

.travis.yml

@@ -1,5 +1,6 @@
 language: python
-python: 2.7
+python:
+  - "3.5"
 sudo: false
 install:
   - pip install tox

CONTRIBUTING.rst

@@ -24,12 +24,6 @@ If you are reporting a bug, please include:
   as much detail as you can. Questions to start a discussion about the issue
   are welcome.
 
-Python 3.3 Support
-~~~~~~~~~~~~~~~~~~
-
-We'd love for ``tox -e py33`` to work and would welcome anybody who can help
-make that a reality.
-
 Fix Bugs
 ~~~~~~~~
 
@@ -119,7 +113,7 @@ Before you submit a pull request, check that it meets these guidelines:
 2. If the pull request adds functionality, the docs should be updated. Put
    your new functionality into a function with a docstring, and add the
    feature to the list in README.rst.
-3. The pull request should work for Python 2.7 and ideally 3.3. Check
+3. The pull request should work for Python 2.7 and 3.3+. Check
    `Travis`_ and make sure that
    the tests pass for all supported Python versions.
 

README.rst

@@ -33,7 +33,7 @@ Requirements
 ------------
 
 * Redis.
-* Python 2.6, 2.7 or 3.3.
+* Python 2.6, 2.7 or 3.3+.
 
 Installation
 ------------

setup.py

@@ -30,6 +30,8 @@ setup(
         'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3',
         'Programming Language :: Python :: 3.3',
+        'Programming Language :: Python :: 3.4',
+        'Programming Language :: Python :: 3.5',
         'Topic :: Software Development :: Libraries :: Python Modules',
     ],
     zip_safe=False,

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py27
+envlist = py27, py33, py34, py35
 
 [testenv]
 deps =