Add flake8 to tests. Fix style

.gitignore

@@ -9,3 +9,4 @@ dist
 coverage-py*
 junit-py*
 docs/_build
+.cache

demo/moulinrouge/tests.py

@@ -26,7 +26,7 @@ from pygal.style import styles, Style, RotateStyle
 from pygal.colors import rotate
 from pygal.graph.horizontal import HorizontalGraph
 from random import randint, choice
-from datetime import datetime, date, time
+from datetime import datetime, date
 
 
 def get_test_routes(app):
@@ -369,9 +369,9 @@ def get_test_routes(app):
 
     @app.route('/test/stacked')
     def test_stacked():
-        stacked = StackedBar()
-        stacked.add('1', [1, 2, 3])
-        stacked.add('2', [4, 5, 6])
+        stacked = StackedLine(stack_from_top=True, logarithmic=True)
+        stacked.add('1', [1, 2])
+        stacked.add('2', [10, 12])
         return stacked.render_response()
 
     @app.route('/test/stacked/reverse')

docs/changelog.rst

@@ -24,6 +24,7 @@ Changelog
 * Transform min_scale and max_scale as options
 * mode option has been renamed to a less generic name: box_mode
 * fix stack_from_top for stacked lines
+* Add flake8 test to py.test in tox
 
 1.7.0
 =====

docs/contributing.rst

@@ -12,7 +12,7 @@ Submit your bug reports and feature requests to the `github bug tracker <http://
 Code style
 ==========
 
-The pygal code tries to respect the `pep8 <https://www.python.org/dev/peps/pep-0008/>`_ please keep that in mind when writing code for pygal.
+The pygal code tries to respect the `pep8 <https://www.python.org/dev/peps/pep-0008/>`_ please keep that in mind when writing code for pygal. (The code style is checked along witht the unit tests, see next paragraph).
 
 
 Testing
@@ -25,7 +25,7 @@ To do this install ``py.test`` and them run ``py.test`` in the root of your pyga
 
 .. code-block:: bash
 
-   [dev@dev pygal/]$ py.test
+   [dev@dev pygal/]$ py.test --flake8
 
 
 Even better if you have several python versions installed you can run ``tox``.

perf.py

@@ -42,6 +42,7 @@ def perf(chart_name, length, series):
 
 if '--bench' in sys.argv:
     bench = True
+
     def prt(s):
         pass
 
@@ -49,6 +50,7 @@ if '--bench' in sys.argv:
         sys.stdout.write(s)
 else:
     bench = False
+
     def prt(s):
         sys.stdout.write(s)
         sys.stdout.flush()

pygal/graph/base.py

@@ -1,4 +1,4 @@
- # -*- coding: utf-8 -*-
+# -*- coding: utf-8 -*-
 # This file is part of pygal
 #
 # A python svg graph plotting library
@@ -165,7 +165,7 @@ class BaseGraph(object):
                 values.append(value)
             serie_config = SerieConfig()
             serie_config(**dict((k, v) for k, v in self.state.__dict__.items()
-                              if k in dir(serie_config)))
+                                if k in dir(serie_config)))
             serie_config(**serie_config_kwargs)
             series.append(
                 Serie(offset + len(series),

pygal/graph/box.py

@@ -231,7 +231,7 @@ class Box(Graph):
         def pstdev(seq):
             m = mean(seq)
             l = len(seq)
-            v = sum((n - m)**2 for n in seq) / l # variance
+            v = sum((n - m)**2 for n in seq) / l  # variance
             return v**0.5  # sqrt
 
         outliers = []

pygal/graph/graph.py

@@ -635,8 +635,8 @@ class Graph(PublicApi):
         """Getter for the minimum series value"""
         return (self.secondary_range[0] if (
             self.secondary_range and self.secondary_range[0] is not None)
-                else (min(self._secondary_values)
-                      if self._secondary_values else None))
+            else (min(self._secondary_values)
+                  if self._secondary_values else None))
 
     @cached_property
     def _min(self):
@@ -656,8 +656,8 @@ class Graph(PublicApi):
         """Getter for the maximum series value"""
         return (self.secondary_range[1] if (
             self.secondary_range and self.secondary_range[1] is not None)
-                else (max(self._secondary_values)
-                      if self._secondary_values else None))
+            else (max(self._secondary_values)
+                  if self._secondary_values else None))
 
     @cached_property
     def _order(self):

pygal/graph/public.py

@@ -1,4 +1,4 @@
- # -*- coding: utf-8 -*-
+# -*- coding: utf-8 -*-
 # This file is part of pygal
 #
 # A python svg graph plotting library

pygal/state.py

@@ -1,4 +1,4 @@
- # -*- coding: utf-8 -*-
+# -*- coding: utf-8 -*-
 # This file is part of pygal
 #
 # A python svg graph plotting library

pygal/svg.py

@@ -228,8 +228,8 @@ class Svg(object):
         line = ' '.join([coord_format(c)
                          for c in coords[origin_index + 1:]
                          if None not in c])
-        return self.node(node, 'path',
-                  d=root % (origin, line), **kwargs)
+        return self.node(
+            node, 'path', d=root % (origin, line), **kwargs)
 
     def slice(
             self, serie_node, node, radius, small_radius,

pygal/test/test_box.py

@@ -129,9 +129,10 @@ def test_quartiles_tukey():
     assert 75 in outliers
     assert 77 in outliers
 
+
 def test_quartiles_stdev():
-    a = [35, 42, 35, 41, 36, 6, 12, 51, 33, 27, 46, 36, 44, 53, 75, 46, 16,\
-        51, 45, 29, 25, 26, 54, 61, 27, 40, 23, 34, 51, 37]
+    a = [35, 42, 35, 41, 36, 6, 12, 51, 33, 27, 46, 36, 44, 53, 75, 46, 16,
+         51, 45, 29, 25, 26, 54, 61, 27, 40, 23, 34, 51, 37]
     SD = 14.67
     (min_s, q0, q1, q2, q3, q4, max_s), outliers = Box._box_points(
         a, mode='stdev')
@@ -142,12 +143,13 @@ def test_quartiles_stdev():
     assert q0 >= q2 - SD
     assert all(n in outliers for n in [6, 12, 16, 53, 54, 61, 75])
 
-    b = [5] # test for posible zero division
+    b = [5]  # test for posible zero division
     (min_s, q0, q1, q2, q3, q4, max_s), outliers = Box._box_points(
         b, mode='stdev')
     assert min_s == q0 == q1 == q2 == q3 == q4 == max_s == b[0]
     assert outliers == []
 
+
 def test_simple_box():
     box = ghostedBox()
     box.add('test1', [-1, 2, 3, 3.1, 3.2, 4, 5])

pygal/test/test_date.py

@@ -45,8 +45,7 @@ def test_date():
                 '2013-02-04',
                 '2013-02-09',
                 '2013-02-14',
-                '2013-02-18'
-            ]
+                '2013-02-18']
 
 
 def test_time():
@@ -68,8 +67,7 @@ def test_time():
                 '11:06:40',
                 '13:53:20',
                 '16:40:00',
-                '19:26:40'
-            ]
+                '19:26:40']
 
 
 def test_datetime():
@@ -96,8 +94,7 @@ def test_datetime():
                 '2013-02-04T18:46:40',
                 '2013-02-09T09:53:20',
                 '2013-02-14T01:00:00',
-                '2013-02-18T16:06:40'
-            ]
+                '2013-02-18T16:06:40']
 
 
 def test_timedelta():
@@ -113,13 +110,12 @@ def test_timedelta():
     assert list(
         t for t in q(".axis.x text").map(texts) if t != '0:00:00'
     ) == [
-            '1 day, 3:46:40',
-            '2 days, 7:33:20',
-            '3 days, 11:20:00',
-            '4 days, 15:06:40',
-            '5 days, 18:53:20',
-            '6 days, 22:40:00'
-        ]
+        '1 day, 3:46:40',
+        '2 days, 7:33:20',
+        '3 days, 11:20:00',
+        '4 days, 15:06:40',
+        '5 days, 18:53:20',
+        '6 days, 22:40:00']
 
 
 def test_date_xrange():
@@ -142,5 +138,4 @@ def test_date_xrange():
                 '2013-01-24',
                 '2013-02-04',
                 '2013-02-16',
-                '2013-02-27'
-            ]
+                '2013-02-27']

pygal/test/test_interpolate.py

@@ -73,6 +73,7 @@ def test_hermite_cardinal(Chart, datas):
     chart = make_data(chart, datas)
     assert chart.render()
 
+
 def test_hermite_catmull_rom(Chart, datas):
     chart = Chart(interpolate='hermite',
                   interpolation_parameters={'type': 'catmull_rom'})

pygal/test/test_pie.py

@@ -16,8 +16,6 @@
 #
 # You should have received a copy of the GNU Lesser General Public License
 # along with pygal. If not, see <http://www.gnu.org/licenses/>.
-import os
-import uuid
 from pygal import Pie
 
 

pygal/test/test_stacked.py

@@ -34,7 +34,7 @@ def test_stacked_line_reverse():
     stacked.add('ten_twelve', [10, 12])
     q = stacked.render_pyquery()
     assert set(q("desc.value").text().split(' ')) == set(
-        ('11', '14', '1', '2'))
+        ('11', '14', '10', '12'))
 
 
 def test_stacked_line_log():

pygal/test/test_style.py

@@ -44,34 +44,37 @@ def test_parametric_styles_with_parameters():
     line.x_labels = 'abc'
     assert line.render()
 
+
 def test_stroke_style():
-    s = Style(stroke_style = 'round')
+    s = Style(stroke_style='round')
     assert s.stroke_style == 'round'
-    s = Style(stroke_style = 'bevel')
+    s = Style(stroke_style='bevel')
     assert s.stroke_style == 'bevel'
-    s = Style(stroke_style = 'miter')
+    s = Style(stroke_style='miter')
     assert s.stroke_style == 'miter'
-    s = Style(stroke_style = 'rounded')
+    s = Style(stroke_style='rounded')
     assert s.stroke_style == 'round'
-    s = Style(stroke_style = 'invalid derp')
+    s = Style(stroke_style='invalid derp')
     assert s.stroke_style == 'round'
 
+
 def test_stroke_dasharray():
-    s = Style(stroke_dasharray = (0,0))
+    s = Style(stroke_dasharray=(0, 0))
     assert s.stroke_dasharray == '0,0'
-    s = Style(stroke_dasharray = (.5,.5))
+    s = Style(stroke_dasharray=(.5, .5))
     assert s.stroke_dasharray == '0,0'
-    s = Style(stroke_dasharray = (.9,.9))
+    s = Style(stroke_dasharray=(.9, .9))
     assert s.stroke_dasharray == '0,0'
-    s = Style(stroke_dasharray = (1.9,1.9))
+    s = Style(stroke_dasharray=(1.9, 1.9))
     assert s.stroke_dasharray == '1,1'
 
+
 def test_stroke_dasharray_input_types():
-    s = Style(stroke_dasharray = (0,0))
+    s = Style(stroke_dasharray=(0, 0))
+    assert s.stroke_dasharray == '0,0'
+    s = Style(stroke_dasharray='0,0')
     assert s.stroke_dasharray == '0,0'
-    s = Style(stroke_dasharray = '0,0')
+    s = Style(stroke_dasharray='0x0')
     assert s.stroke_dasharray == '0,0'
-    s = Style(stroke_dasharray = '0x0')
+    s = Style(stroke_dasharray='0  0')
     assert s.stroke_dasharray == '0,0'
-    s = Style(stroke_dasharray = '0  0')
-    assert s.stroke_dasharray == '0,0'

pygal/test/test_util.py

@@ -16,7 +16,6 @@
 #
 # You should have received a copy of the GNU Lesser General Public License
 # along with pygal. If not, see <http://www.gnu.org/licenses/>.
-from datetime import time
 from pygal._compat import u
 from pygal.util import (
     round_to_int, round_to_float, _swap_curly, template, humanize,

pygal/test/test_view.py

@@ -17,8 +17,6 @@
 # You should have received a copy of the GNU Lesser General Public License
 # along with pygal. If not, see <http://www.gnu.org/licenses/>.
 
-from pygal.test import make_data
-
 
 def test_all_logarithmic(Chart):
     chart = Chart(logarithmic=True)

setup.cfg

@@ -0,0 +1,5 @@
+[pytest]
+flake8-ignore =
+    pygal/__init__.py F401
+    pygal/_compat.py F821
+    docs/conf.py ALL

tox.ini

@@ -4,6 +4,7 @@ envlist = py26,py27,py32,py33,py34,pypy
 [testenv]
 deps =
      pytest
+     pytest-flake8
      coverage
      lxml
      pyquery
@@ -13,5 +14,5 @@ setenv =
     COVERAGE_FILE=.cov-{envname}
 
 commands =
-  coverage run --source=pygal {envbindir}/py.test pygal/test --junitxml=junit-{envname}.xml
+  coverage run --source=pygal {envbindir}/py.test pygal/test --junitxml=junit-{envname}.xml --flake8
   coverage xml -o coverage-{envname}.xml