Update masader.py

masader.py

@@ -131,9 +131,13 @@ class Masader(datasets.GeneratorBasedBuilder):
         i = 0
         idx = 0
          
-        while i < len(df.values) - 1:
+        while i < len(df.values):
             
-            next_entry = df.values[i+1]
+            if i < len(df.values) - 1:
+              next_entry = df.values[i+1]
+            else:
+              next_entry = [] 
+
             curr_entry = df.values[i]
             
             i+= 1
@@ -141,7 +145,7 @@ class Masader(datasets.GeneratorBasedBuilder):
                 entry_list = curr_entry
                 subsets = []
                 
-            if str(next_entry[0]) == "nan":
+            if len(next_entry) > 0 and str(next_entry[0]) == "nan":
                 subsets.append({'Name': next_entry[2], 'Dialect':next_entry[8], 'Volume':next_entry[13], 'Unit':next_entry[14]})
                 continue                
             idx += 1