Update the_pile_github.py

the_pile_github.py

@@ -251,7 +251,7 @@ class SmartContracts(datasets.GeneratorBasedBuilder):
                             "meta": row.meta,
                         }
                     else:
-                        language = row.meta["language"].lower().replace(" ", "_") # e.g. "Jupyter Notebook" -> "jupyter_notebook"
+                        language = str(row.meta["language"]).lower().replace(" ", "_") # e.g. "Jupyter Notebook" -> "jupyter_notebook"
                         if language == self.config.name:
                             yield key, {
                                 "text": row.text,