updating dataset loader

propsegment.py

@@ -163,7 +163,7 @@ class PropSegment(datasets.GeneratorBasedBuilder):
     # method parameters are unpacked from `gen_kwargs` as given in `_split_generators`
     def _generate_examples(self, filepath, split):
         # The `key` is for legacy reasons (tfds) and is not important in itself, but must be unique for each example.
-        with open(filepath[split], encoding="utf-8") as f:
+        with open(filepath, encoding="utf-8") as f:
             for key, row in enumerate(f):
                 data = json.loads(row)
                 if self.config.name == "segmentation":