store old files

apps/old/io.py

@@ -0,0 +1,22 @@
+from typing import Any, Optional
+
+
+class MyIOManager(PolarsParquetIOManager):
+    def _load_partition_from_path(
+        self,
+        context: InputContext,
+        partition_key: str,
+        path: "UPath",
+        backcompat_path: Optional["UPath"] = None,
+    ) -> Any:
+        try:
+            return super()._load_partition_from_path(
+                context, partition_key, path, backcompat_path
+            )
+        except FileNotFoundError:
+            # Handle the case where the partition file does not exist
+            context.log.warning(
+                f"Partition file not found for key {partition_key} at path {path}. "
+                "Returning an empty DataFrame."
+            )
+            return None