Add pep8 checks

Change-Id: Id36116a8a55cf5205634a75c8cc414e96145872a

test-requirements.txt

@@ -1,3 +1,4 @@
+hacking>=0.5.6,<0.7
 testrepository>=0.0.17
 testscenarios>=0.4,<0.5
 testtools>=0.9.32

tests/files/old-setup.py

@@ -14,7 +14,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from setuptools import setup, find_packages
+import setuptools
 
 from swift import __canonical_version__ as version
 
@@ -26,7 +26,7 @@ with open('requirements.txt', 'r') as f:
     requires = [x.strip() for x in f if x.strip()]
 
 
-setup(
+setuptools.setup(
     name=name,
     version=version,
     description='Swift',
@@ -34,7 +34,7 @@ setup(
     author='OpenStack, LLC.',
     author_email='openstack-admins@lists.launchpad.net',
     url='https://launchpad.net/swift',
-    packages=find_packages(exclude=['test', 'bin']),
+    packages=setuptools.find_packages(exclude=['test', 'bin']),
     test_suite='nose.collector',
     classifiers=[
         'Development Status :: 5 - Production/Stable',

tests/test_update.py

@@ -14,6 +14,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+from __future__ import print_function
+
 import os
 import os.path
 import shutil
@@ -26,7 +28,7 @@ import testtools
 def _file_to_list(fname):
     with open(fname) as f:
         content = map(lambda x: x.rstrip(), f.readlines())
-        print content
+        print(content)
         return content
 
 

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py27
+envlist = py27,pep8
 
 [testenv]
 setenv = VIRTUAL_ENV={envdir}
@@ -10,3 +10,9 @@ deps = -U
       -r{toxinidir}/test-requirements.txt
 commands =
   python setup.py testr --slowest --testr-args='{posargs}'
+
+[testenv:pep8]
+commands = flake8
+
+[flake8]
+exclude = .venv,.git,.tox,dist,doc,*egg,build