Add pep8 test and gitignore

Change-Id: I87c206311083f112ff812f15cae9803753b772c1

.gitignore

@@ -0,0 +1,64 @@
+*.py[cod]
+
+# C extensions
+*.so
+
+# Packages
+*.egg*
+*.egg-info
+dist
+build
+eggs
+parts
+bin
+var
+sdist
+develop-eggs
+.installed.cfg
+lib
+lib64
+
+# Installer logs
+pip-log.txt
+
+# Unit test / coverage reports
+cover/
+.coverage*
+!.coveragerc
+.tox
+nosetests.xml
+.testrepository
+.venv
+
+# Translations
+*.mo
+
+# Mr Developer
+.mr.developer.cfg
+.project
+.pydevproject
+
+# Complexity
+output/*.html
+output/*/index.html
+
+# Sphinx
+doc/build
+
+# pbr generates these
+AUTHORS
+ChangeLog
+
+# Editors
+*~
+.*.swp
+.*sw?
+
+# Configs
+*.conf
+
+# openrc files
+openrc-*
+
+# debug info from oslo_debug_helper
+debug-*

tox.ini

@@ -1,6 +1,6 @@
 [tox]
-minversion = 1.6
-envlist = linters
+minversion = 1.7
+envlist = py35,py34,py27,pypy,pep8,linters
 skipsdist = True
 
 [testenv:linters]
@@ -8,5 +8,22 @@ deps = yamllint
 commands =
     {toxinidir}/tools/yamllint.sh
 
+[testenv:pep8]
+deps = flake8
+commands =
+  flake8 {posargs}
+
 [testenv:venv]
 commands = {posargs}
+
+[testenv:venv3]
+basepython = python3
+commands = {posargs}
+
+[flake8]
+# H102 skipped as it's a non-free project
+
+show-source = True
+ignore = H102
+builtins = _
+exclude=.venv,.git,.tox,dist,doc,*openstack/common*,*lib/python*,*egg,build