Merge pull request plotly#2163 from plotly/pandas-1.0

fixed pandas 1.0 problem in sunburst/treemap example

Author: emmanuelle

doc/python/sunburst-charts.md

@@ -326,7 +326,7 @@ def build_hierarchical_dataframe(df, levels, value_column, color_columns=None):
     df_all_trees = pd.DataFrame(columns=['id', 'parent', 'value', 'color'])
     for i, level in enumerate(levels):
         df_tree = pd.DataFrame(columns=['id', 'parent', 'value', 'color'])
-        dfg = df.groupby(levels[i:]).sum(numerical_only=True)
+        dfg = df.groupby(levels[i:]).sum()
         dfg = dfg.reset_index()
         df_tree['id'] = dfg[level].copy()
         if i < len(levels) - 1:

doc/python/treemaps.md

@@ -278,7 +278,7 @@ def build_hierarchical_dataframe(df, levels, value_column, color_columns=None):
     df_all_trees = pd.DataFrame(columns=['id', 'parent', 'value', 'color'])
     for i, level in enumerate(levels):
         df_tree = pd.DataFrame(columns=['id', 'parent', 'value', 'color'])
-        dfg = df.groupby(levels[i:]).sum(numerical_only=True)
+        dfg = df.groupby(levels[i:]).sum()
         dfg = dfg.reset_index()
         df_tree['id'] = dfg[level].copy()
         if i < len(levels) - 1: