Update PlotQA_dataset.py

PlotQA_dataset.py

@@ -165,7 +165,7 @@ class PlotQA(datasets.GeneratorBasedBuilder):
         ## file.extractall('./imgs')
         ## file.close()
         _multi_anno = [annotation_v1_path, annotation_v2_path]
-        with (_multi_anno, "r", encoding="utf-8") as v:
+        with open(_multi_anno, "r", encoding="utf-8") as v:
             data = json.load(v)
   
         idx = 0