Update flake8 related dependencies

In order to raise the cap on pbr we need to update
the dependent versions of the flake8 related packages
for the pep8 job since they have capped pbr.

A couple of simple hacking issues are fixed, the rest
are ignored.

Change-Id: Icddb5bf284da7b6463ebcfc7512726149ffe6085

migrate/versioning/repository.py

@@ -62,7 +62,7 @@ class Changeset(dict):
 
     def run(self, *p, **k):
         """Run the changeset scripts"""
-        for version, script in self:
+        for ver, script in self:
             script.run(*p, **k)
 
 

migrate/versioning/util/__init__.py

@@ -164,7 +164,7 @@ def with_engine(f, *a, **kw):
             engine.dispose()
 
 
-class Memoize:
+class Memoize(object):
     """Memoize(fn) - an instance which acts like fn but memoizes its arguments
        Will only work on functions with non-mutable arguments
 

migrate/versioning/version.py

@@ -252,7 +252,7 @@ class Version(object):
         self.python = script.PythonScript(path)
 
 
-class Extensions:
+class Extensions(object):
     """A namespace for file extensions"""
     py = 'py'
     sql = 'sql'

test-requirements.txt

@@ -1,8 +1,8 @@
 # Install bounded pep8/pyflakes first, then let flake8 install
-pep8==1.4.5
-pyflakes>=0.7.2,<0.7.4
-flake8==2.0
-hacking>=0.8.0,<0.9
+pep8==1.5.7
+pyflakes==0.8.1
+flake8>=2.2.4,<=2.4.1
+hacking>=0.10.0,<0.11
 
 coverage>=3.6
 discover

tox.ini

@@ -80,6 +80,8 @@ commands =
   python setup.py testr --slowest --testr-args='{posargs}'
 
 [flake8]
+# E111 indentation is not a multiple of four
+# E113 unexpected indentation
 # E121 continuation line indentation is not a multiple of four
 # E122 continuation line missing indentation or outdented
 # E123 closing bracket does not match indentation of opening bracket's line
@@ -88,12 +90,15 @@ commands =
 # E126 continuation line over-indented for hanging indent
 # E127 continuation line over-indented for visual indent
 # E128 continuation line under-indented for visual indent
+# E129 visually indented line with same indent as next logical line
+# E131 continuation line unaligned for hanging indent
 # E202 whitespace before ')'
 # E203 whitespace before ','
 # E225 missing whitespace around operator
 # E226 missing whitespace around arithmetic operator
 # E228 missing whitespace around modulo operator
 # E231 missing whitespace after ','
+# E265 block comment should start with '# '
 # H234 assertEquals is deprecated, use assertEqual
 # E251 unexpected spaces around keyword / parameter equals
 # E261 at least two spaces before inline comment
@@ -122,9 +127,10 @@ commands =
 # H402 one line docstring needs punctuation.
 # H403 multi line docstring end on new line
 # H404 multi line docstring should start with a summary
+# H405 multi line docstring summary not separated with an empty line
 # H501 Do not use locals() for string formatting
 # W391 blank line at end of file
-ignore = E121,E122,E123,E124,E125,E126,E127,E128,E202,E203,E225,E226,E228,E231,E251,E261,E272,E301,E302,E303,E401,E501,E502,E702,E712,F401,F403,F811,F821,F841,H101,H201,H202,H233,H234,H301,H302,H306,H401,H402,H403,H404,H501,W391
+ignore = E111,E113,E121,E122,E123,E124,E125,E126,E127,E128,E129,E131,E202,E203,E225,E226,E228,E231,E251,E261,E265,E272,E301,E302,E303,E401,E501,E502,E702,E712,F401,F403,F811,F821,F841,H101,H201,H202,H233,H234,H301,H302,H306,H401,H402,H403,H404,H405,H501,W391
 show-source = true
 builtins = _
 exclude=.venv,.git,.tox,dist,doc,*openstack/common*,*lib/python*,*egg,tools,build