kaxil commented on code in PR #62701:
URL: https://github.com/apache/airflow/pull/62701#discussion_r2874179444


##########
task-sdk/src/airflow/sdk/io/path.py:
##########
@@ -111,13 +111,21 @@ def __init__(
         # override conn_id if explicitly provided
         if conn_id is not None:
             storage_options["conn_id"] = conn_id
+
+        # pop conn_id before calling super to prevent it from being passed
+        # to the underlying fsspec filesystem, which doesn't understand it
+        self._conn_id = storage_options.pop("conn_id", None)

Review Comment:
   I think this may break derived paths (`/`, `joinpath`). 
`UPath.with_segments()` constructs children with `type(self)(..., 
**self.storage_options)`, and `__vfspath__()` for absolute paths uses 
`self.path` (without `conn_id`). After popping `conn_id` here, child paths may 
lose it.
   
   Repro:
   
   ```py
   base = ObjectStoragePath("s3://aws_default@bucket/prefix")
   child = base / "x"
   child.conn_id` may become `None`.
   ```
   
   Could we preserve `conn_id` for segment operations (for example by 
overriding `with_segments`/`joinpath` to pass `conn_id=self.conn_id`)?



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