- Cleaned tox.ini a bit.

- Didn't specity specific Python versions (2 and 3).
- Removed flake8 from dev dependecy list in setup.py, dev requires just tox for
  testing (it installs the testing packages in the virtualenvs).

setup.py

@@ -13,8 +13,8 @@ setup(
     classifiers=[
         'Development status :: 4 - Beta',
         'Intended Audience :: Developers',
-        'Programming Language :: Python :: 3.5',
-        'Programming Language :: Python :: 2.7',
+        'Programming Language :: Python :: 3',
+        'Programming Language :: Python :: 2',
         'Intended Audience :: System Administrators',
         'Topic :: Utilities',
     ],
@@ -22,7 +22,7 @@ setup(
     packages=find_packages(),
     install_requires=['botocore'],
     extras_require={
-        'dev': ['tox', 'flake8'], },
+        'dev': ['tox'], },
     entry_points={
         'console_scripts': [
             'eb-prune=eb_prune:main'], },

tox.ini

-
-# this file is *not* meant to cover or endorse the use of tox or pytest or
-# testing in general,
-#
-#  It's meant to show the use of:
-#
-#  - check-manifest
-#     confirm items checked into vcs are in your sdist
-#  - python setup.py check (using the readme_renderer extension)
-#     confirms your long_description will render correctly on pypi
-#
-#  and also to help confirm pull requests to this project.
-
 [tox]
-envlist = py{27,35}
+envlist = py{2,3}
 
 [testenv]
 basepython =
-    py27: python2.7
-    py35: python3.5
+    py2: python2
+    py3: python3
 deps =
     check-manifest
-    {py27,py35}: readme_renderer
+    readme_renderer
     flake8
 commands =
     check-manifest --ignore tox.ini,tests*
-    # py26 doesn't have "setup.py check"
-    {py27,py35}: python setup.py check -m -r -s
+    python setup.py check -m -r -s
     flake8 .
+
 [flake8]
 exclude = .tox,*.egg,build,data
 select = E,W,F