Feature/flake8 (#184)

* new: test: flake8 test

* chg: dev: add flake8 package for test

* chg: dev: remove coverage rule

.travis.yml

@@ -16,6 +16,7 @@ addons:
       - devscripts
       - zsh
 script:
+  - python3 -m flake8
   - python3 -m pytest ./tests/test_*.py --cov buku -vv
   - git fetch --unshallow --tags origin
   - ./tools/makedeb

setup.cfg

@@ -0,0 +1,21 @@
+[flake8]
+max-line-length = 139
+ignore =
+    # C901 func is too complex
+    C901,
+    # E126 continuation line over-indented for hanging indent
+    E126,
+    # E127 continuation line over-indented for visual indent
+    E127,
+    # E226 missing whitespace around arithmetic operator
+    E226,
+    # E231 missing whitespace after ','
+    E231,
+    # E302 expected 2 blank lines, found 1
+    E302,
+    # E305 expected 2 blank lines after class or function definition, found 1
+    E305,
+    # E731 do not assign a lambda expression, use a def
+    E731,
+    # W292 no newline at end of file
+    W292,

setup.py

@@ -17,7 +17,7 @@ with open('README.md', encoding='utf-8') as f:
 
 tests_require = [
     'pytest-cov', 'pytest-catchlog', 'hypothesis>=3.7.0', 'pytest>=3.1.2', 'py>=1.4.33',
-    'beautifulsoup4==4.6.0'
+    'beautifulsoup4==4.6.0', 'flake8>=3.4.1'
 ],
 
 setup(

tox.ini

@@ -5,5 +5,6 @@ envlist = python33,python34,python35
 commands =
     pip install -e .[tests]
     pip install -r requirements.txt
+    python -m flake8
     pytest --cov buku -vv {posargs}
     ;pytest --cov buku -vv -m 'not slowtest and not non_tox'{posargs}