pitrou commented on a change in pull request #8149:
URL: https://github.com/apache/arrow/pull/8149#discussion_r500982254
##########
File path: python/pyarrow/__init__.py
##########
@@ -190,23 +191,58 @@ def show_versions():
SerializationCallbackError,
DeserializationCallbackError)
-from pyarrow.filesystem import FileSystem, LocalFileSystem
-
-from pyarrow.hdfs import HadoopFileSystem
import pyarrow.hdfs as hdfs
from pyarrow.ipc import serialize_pandas, deserialize_pandas
import pyarrow.ipc as ipc
-
-localfs = LocalFileSystem.get_instance()
-
from pyarrow.serialization import (default_serialization_context,
register_default_serialization_handlers,
register_torch_serialization_handlers)
import pyarrow.types as types
+
+# deprecated filesystems
+
+from pyarrow.filesystem import FileSystem as _FileSystem, LocalFileSystem as
_LocalFileSystem
+from pyarrow.hdfs import HadoopFileSystem as _HadoopFileSystem
+
+_localfs = _LocalFileSystem._get_instance()
+
+
+_msg = "pyarrow.{0} is deprecated as of 2.0.0, please use pyarrow.fs.{1}
instead."
+
+
+if _sys.version_info >= (3, 7):
+ def __getattr__(name):
+ if name == "localfs":
Review comment:
Looks like you want to write a loop and/or helper function to avoid all
this copy/pasting?
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