Fix tox run issues

setup.py

@@ -26,4 +26,4 @@ except ImportError:
 
 setuptools.setup(
     setup_requires=['pbr'],
-    pbr=True)
+    pbr=True)

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 minversion = 1.6
-envlist = py34,py27,pypy,pep8
+envlist = py34,py27,pep8
 skipsdist = True
 
 [testenv]
@@ -32,4 +32,4 @@ commands = oslo_debug_helper {posargs}
 show-source = True
 ignore = E123,E125
 builtins = _
-exclude=.venv,.git,.tox,dist,doc,*openstack/common*,*lib/python*,*egg,build
+exclude=.venv,.git,.tox,dist,doc,*openstack/common*,*lib/python*,*egg,build

tuning_box/__init__.py

@@ -16,4 +16,4 @@ import pbr.version
 
 
 __version__ = pbr.version.VersionInfo(
-    'tuning_box').version_string()
+    'tuning_box').version_string()

tuning_box/tests/base.py

@@ -20,4 +20,4 @@ from oslotest import base
 
 class TestCase(base.BaseTestCase):
 
-    """Test case base class for all unit tests."""
+    """Test case base class for all unit tests."""

tuning_box/tests/test_tuning_box.py

@@ -25,4 +25,4 @@ from tuning_box.tests import base
 class TestTuning_box(base.TestCase):
 
     def test_something(self):
-        pass
+        pass