kszucs opened a new pull request, #3609:
URL: https://github.com/apache/iceberg-python/pull/3609

   # Rationale for this change
   
   HuggingFace Hub (`hf://`) storage support already works via `fsspec`'s 
`HfFileSystem`, but has no way to pin reads to a specific revision 
(branch/tag/commit) for reproducibility, unlike iceberg-rust's `HF_REVISION`. 
`HfFileSystem` resolves `revision` per call rather than as a filesystem-wide 
default, so `hf.revision` is threaded through as a read-time kwarg on 
`FsspecInputFile`. Writes and deletes intentionally always target the 
repository's default branch, since a pinned revision can be an immutable tag or 
commit and isn't a valid write target.
   
   ## Are these changes tested?
   
   Yes: unit tests covering revision forwarding on reads (`len()`, `.exists()`, 
`.open()`), confirming writes don't receive the revision kwarg, the 
no-revision-set default, and non-`hf` schemes being unaffected.
   
   ## Are there any user-facing changes?
   
   Yes: new `hf.revision` table/catalog property, documented in 
`configuration.md`.


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