rdblue commented on a change in pull request #4021:
URL: https://github.com/apache/iceberg/pull/4021#discussion_r798149922
##########
File path: python/src/iceberg/io/base.py
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@@ -24,7 +24,40 @@
"""
from abc import ABC, abstractmethod
-from typing import Union
+from typing import Protocol, Union, runtime_checkable
+
+
+@runtime_checkable
+class InputStream(Protocol):
+ def read(self, n: int) -> bytes:
+ ...
Review comment:
Sounds like NativeFile could be returned here, which is good. I think
IOBase could be as well. But I'm wondering what the requirement is for what is
necessary for passing this IN to Arrow?
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