Update mconala.py

mconala.py

@@ -68,8 +68,6 @@ class MCoNaLa(datasets.GeneratorBasedBuilder):
 
 
     def _generate_examples(self, filepath, split):
-        key = 0
-        for line in open(filepath, encoding="utf-8"):
-            line = json.loads(line)
-            yield key, line   
-            key += 1
+        dataset = json.load(open(filepath, encoding="utf-8"))
+        for key, line in enumerate(dataset):
+            yield key, line