Remove value from dict this fixes #4 and fix zero value in gauge

demo/moulinrouge/tests.py

@@ -25,7 +25,7 @@ def get_test_routes(app):
 
     @app.route('/test/bar_links')
     def test_bar_links():
-        bar = Bar(style=styles['neon'])
+        bar = Gauge(style=styles['neon'])
         bar.add('1234', [
             {'value': 10,
              'label': 'Ten',
@@ -106,6 +106,12 @@ def get_test_routes(app):
         graph.add('2', [7, -4, 10, None, 8, 3, 1])
         return graph.render_response()
 
+    @app.route('/test/negative/<chart>')
+    def test_negative_for(chart):
+        graph = CHARTS_BY_NAME[chart](interpolate='cubic')
+        graph.add('1', [10, 0, -10])
+        return graph.render_response()
+
     @app.route('/test/stacked')
     def test_stacked():
         stacked = StackedBar()

pygal/css/graph.css

@@ -58,7 +58,7 @@ text.no_data {
   stroke-dasharray: 4,4;
 }
 
-.axis .major.line {
+.axis .major.guide.line {
   stroke-dasharray: 6,6;
 }
 .axis text.major {

pygal/graph/gauge.py

@@ -50,7 +50,7 @@ class Gauge(Graph):
     def needle(self, serie_node, serie,):
         thickness = .05
         for i, value in enumerate(serie.values):
-            if not value:
+            if value is None:
                 continue
             theta = self.arc_pos(value)
             fmt = lambda x: '%f %f' % x
@@ -90,8 +90,9 @@ class Gauge(Graph):
             self.svg.line(
                 guides, [self.view((0, theta)), self.view((.95, theta))],
                 close=True,
-                class_='guide line %s' % ('major'
-                if i in (0, len(self._x_labels) - 1) else ''))
+                class_='guide line %s' % (
+                    'major' if i in (0, len(self._x_labels) - 1)
+                    else ''))
 
             x, y = self.view((.9, theta))
             self.svg.node(guides, 'text',

pygal/test/test_graph.py

@@ -86,6 +86,8 @@ def test_metadata(Chart):
             'Five', 'http://7.example.com/', 'Seven'):
         assert md in cut(q('desc'), 'text')
 
+    assert len(v) == len(q('.tooltip-trigger').siblings('.value'))
+
 
 def test_empty_lists(Chart):
     chart = Chart()

pygal/util.py

@@ -323,7 +323,7 @@ def prepare_values(raw, config, cls):
                     (width - len(raw_values)) * [None]  # aligning values
                     if len(raw_values) < width else [])):
             if isinstance(raw_value, dict):
-                value = dict(raw_value).pop('value')
+                value = raw_value.pop('value')
                 metadata[index] = raw_value
             else:
                 value = raw_value