BUG: Fix Empty DataFrame.style.render raises IndexError

Fix attempt for Issue pandas-dev#15953

Handles DataFrames and Series with no rows or columns
using `pd.DataFrame().empty` or `pd.Series().empty`

Author: sandipchatterjee

pandas/formats/style.py

@@ -218,8 +218,8 @@ def format_attr(pair):
 
         cell_context = dict()
 
-        n_rlvls = self.data.index.nlevels
-        n_clvls = self.data.columns.nlevels
+        n_rlvls = 0 if self.data.empty else self.data.index.nlevels
+        n_clvls = 0 if self.data.empty else self.data.columns.nlevels
         rlabels = self.data.index.tolist()
         clabels = self.data.columns.tolist()