Update the packaging so wheels work

setup.cfg

@@ -8,6 +8,9 @@ universal=1
 requires-dist =
     enum34; python_version<"3.4"
     configparser; python_version<"3.2"
+    pyflakes >= 0.8.1, != 1.2.0, != 1.2.1, != 1.2.2, < 1.3.0
+    pycodestyle >= 2.0.0, < 2.1.0
+    mccabe >= 0.5.0, < 0.6.0
 
 [pytest]
 norecursedirs = .git .* *.egg* old docs dist build

setup.py

@@ -115,7 +115,8 @@ setuptools.setup(
             PEP8_PLUGIN('comparison_to_singleton'),
             PEP8_PLUGIN('comparison_negative'),
             PEP8_PLUGIN('comparison_type'),
-            PEP8_PLUGIN('ambiguous_identifier'),
+            # NOTE(sigmavirus24): Add this back once PyCodestyle 2.1.0 is out
+            # PEP8_PLUGIN('ambiguous_identifier'),
             PEP8_PLUGIN('python_3000_has_key'),
             PEP8_PLUGIN('python_3000_raise_comma'),
             PEP8_PLUGIN('python_3000_not_equal'),

tox.ini

@@ -108,6 +108,19 @@ deps =
 commands =
     python setup.py check -r -s
 
+[testenv:release]
+skipsdist = true
+basepython = python3
+skip_install = true
+use_develop = false
+deps =
+    wheel
+    setuptools
+    twine >= 1.5.0
+commands =
+    python setup.py -q sdist bdist_wheel
+    twine upload --skip-existing dist/*
+
 # Flake8 Configuration
 [flake8]
 # Ignore some flake8-docstrings errors