fix tests

Author: Kully

plotly/figure_factory/_bullet.py

@@ -264,14 +264,13 @@ def create_bullet(data, markers=None, measures=None, ranges=None,
     if is_sequence(data):
         if not all(isinstance(item, dict) for item in data):
             raise exceptions.PlotlyError(
-                'Every entry of the data argument (list, tuple, etc) must '
+                'Every entry of the data argument list, tuple, etc must '
                 'be a dictionary.'
             )
 
     elif not isinstance(data, pd.DataFrame):
         raise exceptions.PlotlyError(
-            'You must input a pandas DataFrame, or a list or tuple of '
-            'dictionaries.'
+            'You must input a pandas DataFrame, or a list of dictionaries.'
         )
 
     # make DataFrame from data with correct column headers

plotly/tests/test_optional/test_figure_factory.py

@@ -2202,7 +2202,7 @@ def test_df_as_list(self):
     def test_not_df_or_list(self):
         df = 'foo'
 
-        pattern = ('You must input a pandas DataFrame or a list of dictionaries.')
+        pattern = ('You must input a pandas DataFrame, or a list of dictionaries.')
         self.assertRaisesRegexp(PlotlyError, pattern, ff.create_bullet, df)
 
     def test_valid_color_lists_of_2_rgb_colors(self):