Add flake8 testing to tox and travis. (#449)

* Add flake8 to tox and travis.

* Fix some flake8 errors.

Author: vytisb

.travis.yml

@@ -16,6 +16,7 @@ env:
     - TOXENV="py27-django1.10"
     - TOXENV="py35-django1.10"
     - TOXENV="py34-django1.10"
+    - TOXENV="flake8"
 
 matrix:
     fast_finish: true

djcelery/management/base.py

@@ -2,7 +2,6 @@
 
 import celery
 import djcelery
-import django
 import sys
 
 from django.core.management.base import BaseCommand

djcelery/picklefield.py

@@ -41,7 +41,7 @@
     @with_metaclass(models.SubfieldBase, skip_attrs=set([
         'db_type',
         'get_db_prep_save'
-        ]))
+    ]))
     class BaseField(models.Field):  # noqa
         pass
 

djcelery/tests/test_backends/test_cache.py

@@ -5,7 +5,6 @@
 from datetime import timedelta
 
 from billiard.einfo import ExceptionInfo
-import django
 from django.core.cache.backends.base import InvalidCacheBackendError
 
 from celery import result

djcelery/urls.py

@@ -26,15 +26,15 @@
         r'^%s/done/?$' % task_pattern,
         views.is_task_successful,
         name='celery-is_task_successful'
-        ),
+    ),
     url(
         r'^%s/status/?$' % task_pattern,
         views.task_status,
         name='celery-task_status'
-        ),
+    ),
     url(
         r'^tasks/?$',
         views.registered_tasks,
         name='celery-tasks'
-        ),
+    ),
 ]

setup.cfg

@@ -9,3 +9,7 @@ upload-dir = docs/.build/html
 [bdist_rpm]
 requires = celery >= 3.1.15
            django >= 1.8
+
+[flake8]
+exclude = build,.git,djcelery/migrations
+ignore = X999

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py27-django{1.8,1.9,1.10}, py33-django1.8, py{34,35}-django{1.8,1.9,1.10}
+envlist = py27-django{1.8,1.9,1.10}, py33-django1.8, py{34,35}-django{1.8,1.9,1.10},flake8
 
 [testenv]
 sitepackages = False
@@ -15,3 +15,10 @@ setenv =
     DJANGO_SETTINGS_MODULE=settings
 commands =
     {posargs:python tests/manage.py test}
+
+[testenv:flake8]
+basepython = python2.7
+deps =
+    flake8
+commands =
+    flake8