Update masader.py

masader.py

@@ -99,12 +99,12 @@ class Masader(datasets.GeneratorBasedBuilder):
         while i < len(df.values):
            
             entry_list = df[i].tolist()
-            if str(df.values[i][0]) == "nan":
+            if str(entry_list[0]) == "nan":
                 subsets[entry_list[2]] = {'Dialect':entry_list[7], 'Volume':entry_list[13], 'Unit':entry_list[14]}
                 i += 1 
                 continue
-
+            
             masader_entry = {col:entry_list[i] for i,col in enumerate(columns) if i != 2}
-            masader_entry['subsets'] = str(subsets)
+            masader_entry['subsets'] = ""
             subsets = {}
             yield i, masader_entry