backward compat (apache#1151)

pyiceberg/table/__init__.py

@@ -106,8 +106,15 @@
     UpgradeFormatVersionUpdate,
     update_table_metadata,
 )
-from pyiceberg.table.update.schema import UpdateSchema
-from pyiceberg.table.update.snapshot import ManageSnapshots, UpdateSnapshot
+from pyiceberg.table.update.schema import UpdateSchema, _Move, _MoveOperation
+from pyiceberg.table.update.snapshot import (
+    ManageSnapshots,
+    UpdateSnapshot,
+    _DeleteFiles,
+    _FastAppendFiles,
+    _MergeAppendFiles,
+    _OverwriteFiles,
+)
 from pyiceberg.table.update.spec import UpdateSpec
 from pyiceberg.typedef import (
     EMPTY_DICT,
@@ -1464,3 +1471,57 @@ def _parquet_files_to_data_files(table_metadata: TableMetadata, file_paths: List
     from pyiceberg.io.pyarrow import parquet_files_to_data_files
 
     yield from parquet_files_to_data_files(io=io, table_metadata=table_metadata, file_paths=iter(file_paths))
+
+
+@deprecated(
+    deprecated_in="0.8.0",
+    removed_in="0.9.0",
+    help_message="pyiceberg.table.Move has been changed to private class pyiceberg.table.update.schema._Move",
+)
+def Move(*args: Any, **kwargs: Any) -> _Move:
+    return _Move(*args, **kwargs)
+
+
+@deprecated(
+    deprecated_in="0.8.0",
+    removed_in="0.9.0",
+    help_message="pyiceberg.table.MoveOperation has been changed to private class pyiceberg.table.update.schema._MoveOperation",
+)
+def MoveOperation(*args: Any, **kwargs: Any) -> _MoveOperation:
+    return _MoveOperation(*args, **kwargs)
+
+
+@deprecated(
+    deprecated_in="0.8.0",
+    removed_in="0.9.0",
+    help_message="pyiceberg.table.DeleteFiles has been changed to private class pyiceberg.table.update.snapshot._DeleteFiles",
+)
+def DeleteFiles(*args: Any, **kwargs: Any) -> _DeleteFiles:
+    return _DeleteFiles(*args, **kwargs)
+
+
+@deprecated(
+    deprecated_in="0.8.0",
+    removed_in="0.9.0",
+    help_message="pyiceberg.table.FastAppendFiles has been changed to private class pyiceberg.table.update.snapshot._FastAppendFiles",
+)
+def FastAppendFiles(*args: Any, **kwargs: Any) -> _FastAppendFiles:
+    return _FastAppendFiles(*args, **kwargs)
+
+
+@deprecated(
+    deprecated_in="0.8.0",
+    removed_in="0.9.0",
+    help_message="pyiceberg.table.MergeAppendFiles has been changed to private class pyiceberg.table.update.snapshot._MergeAppendFiles",
+)
+def MergeAppendFiles(*args: Any, **kwargs: Any) -> _MergeAppendFiles:
+    return _MergeAppendFiles(*args, **kwargs)
+
+
+@deprecated(
+    deprecated_in="0.8.0",
+    removed_in="0.9.0",
+    help_message="pyiceberg.table.OverwriteFiles has been changed to private class pyiceberg.table.update.snapshot._OverwriteFiles",
+)
+def OverwriteFiles(*args: Any, **kwargs: Any) -> _OverwriteFiles:
+    return _OverwriteFiles(*args, **kwargs)

pyiceberg/table/update/schema.py

@@ -57,17 +57,17 @@
 TABLE_ROOT_ID = -1
 
 
-class MoveOperation(Enum):
+class _MoveOperation(Enum):
     First = 1
     Before = 2
     After = 3
 
 
 @dataclass
-class Move:
+class _Move:
     field_id: int
     full_name: str
-    op: MoveOperation
+    op: _MoveOperation
     other_field_id: Optional[int] = None
 
 
@@ -79,7 +79,7 @@ class UpdateSchema(UpdateTableMetadata["UpdateSchema"]):
     _adds: Dict[int, List[NestedField]] = {}
     _updates: Dict[int, NestedField] = {}
     _deletes: Set[int] = set()
-    _moves: Dict[int, List[Move]] = {}
+    _moves: Dict[int, List[_Move]] = {}
 
     _added_name_to_id: Dict[str, int] = {}
     # Part of https://github.com/apache/iceberg/pull/8393
@@ -146,7 +146,7 @@ def union_by_name(self, new_schema: Union[Schema, "pa.Schema"]) -> UpdateSchema:
         visit_with_partner(
             Catalog._convert_schema_if_needed(new_schema),
             -1,
-            UnionByNameVisitor(update_schema=self, existing_schema=self._schema, case_sensitive=self._case_sensitive),
+            _UnionByNameVisitor(update_schema=self, existing_schema=self._schema, case_sensitive=self._case_sensitive),
             # type: ignore
             PartnerIdByNameAccessor(partner_schema=self._schema, case_sensitive=self._case_sensitive),
         )
@@ -410,13 +410,13 @@ def _find_for_move(self, name: str) -> Optional[int]:
 
         return self._added_name_to_id.get(name)
 
-    def _move(self, move: Move) -> None:
+    def _move(self, move: _Move) -> None:
         if parent_name := self._id_to_parent.get(move.field_id):
             parent_field = self._schema.find_field(parent_name, case_sensitive=self._case_sensitive)
             if not parent_field.field_type.is_struct:
                 raise ValueError(f"Cannot move fields in non-struct type: {parent_field.field_type}")
 
-            if move.op == MoveOperation.After or move.op == MoveOperation.Before:
+            if move.op == _MoveOperation.After or move.op == _MoveOperation.Before:
                 if move.other_field_id is None:
                     raise ValueError("Expected other field when performing before/after move")
 
@@ -426,7 +426,7 @@ def _move(self, move: Move) -> None:
             self._moves[parent_field.field_id] = self._moves.get(parent_field.field_id, []) + [move]
         else:
             # In the top level field
-            if move.op == MoveOperation.After or move.op == MoveOperation.Before:
+            if move.op == _MoveOperation.After or move.op == _MoveOperation.Before:
                 if move.other_field_id is None:
                     raise ValueError("Expected other field when performing before/after move")
 
@@ -451,7 +451,7 @@ def move_first(self, path: Union[str, Tuple[str, ...]]) -> UpdateSchema:
         if field_id is None:
             raise ValueError(f"Cannot move missing column: {full_name}")
 
-        self._move(Move(field_id=field_id, full_name=full_name, op=MoveOperation.First))
+        self._move(_Move(field_id=field_id, full_name=full_name, op=_MoveOperation.First))
 
         return self
 
@@ -485,7 +485,7 @@ def move_before(self, path: Union[str, Tuple[str, ...]], before_path: Union[str,
         if field_id == before_field_id:
             raise ValueError(f"Cannot move {full_name} before itself")
 
-        self._move(Move(field_id=field_id, full_name=full_name, other_field_id=before_field_id, op=MoveOperation.Before))
+        self._move(_Move(field_id=field_id, full_name=full_name, other_field_id=before_field_id, op=_MoveOperation.Before))
 
         return self
 
@@ -514,7 +514,7 @@ def move_after(self, path: Union[str, Tuple[str, ...]], after_name: Union[str, T
         if field_id == after_field_id:
             raise ValueError(f"Cannot move {full_name} after itself")
 
-        self._move(Move(field_id=field_id, full_name=full_name, other_field_id=after_field_id, op=MoveOperation.After))
+        self._move(_Move(field_id=field_id, full_name=full_name, other_field_id=after_field_id, op=_MoveOperation.After))
 
         return self
 
@@ -592,10 +592,14 @@ class _ApplyChanges(SchemaVisitor[Optional[IcebergType]]):
     _adds: Dict[int, List[NestedField]]
     _updates: Dict[int, NestedField]
     _deletes: Set[int]
-    _moves: Dict[int, List[Move]]
+    _moves: Dict[int, List[_Move]]
 
     def __init__(
-        self, adds: Dict[int, List[NestedField]], updates: Dict[int, NestedField], deletes: Set[int], moves: Dict[int, List[Move]]
+        self,
+        adds: Dict[int, List[NestedField]],
+        updates: Dict[int, NestedField],
+        deletes: Set[int],
+        moves: Dict[int, List[_Move]],
     ) -> None:
         self._adds = adds
         self._updates = updates
@@ -715,7 +719,7 @@ def primitive(self, primitive: PrimitiveType) -> Optional[IcebergType]:
         return primitive
 
 
-class UnionByNameVisitor(SchemaWithPartnerVisitor[int, bool]):
+class _UnionByNameVisitor(SchemaWithPartnerVisitor[int, bool]):
     update_schema: UpdateSchema
     existing_schema: Schema
     case_sensitive: bool
@@ -873,20 +877,20 @@ def _add_fields(fields: Tuple[NestedField, ...], adds: Optional[List[NestedField
     return fields + tuple(adds)
 
 
-def _move_fields(fields: Tuple[NestedField, ...], moves: List[Move]) -> Tuple[NestedField, ...]:
+def _move_fields(fields: Tuple[NestedField, ...], moves: List[_Move]) -> Tuple[NestedField, ...]:
     reordered = list(copy(fields))
     for move in moves:
         # Find the field that we're about to move
         field = next(field for field in reordered if field.field_id == move.field_id)
         # Remove the field that we're about to move from the list
         reordered = [field for field in reordered if field.field_id != move.field_id]
 
-        if move.op == MoveOperation.First:
+        if move.op == _MoveOperation.First:
             reordered = [field] + reordered
-        elif move.op == MoveOperation.Before or move.op == MoveOperation.After:
+        elif move.op == _MoveOperation.Before or move.op == _MoveOperation.After:
             other_field_id = move.other_field_id
             other_field_pos = next(i for i, field in enumerate(reordered) if field.field_id == other_field_id)
-            if move.op == MoveOperation.Before:
+            if move.op == _MoveOperation.Before:
                 reordered.insert(other_field_pos, field)
             else:
                 reordered.insert(other_field_pos + 1, field)
@@ -897,7 +901,7 @@ def _move_fields(fields: Tuple[NestedField, ...], moves: List[Move]) -> Tuple[Ne
 
 
 def _add_and_move_fields(
-    fields: Tuple[NestedField, ...], adds: List[NestedField], moves: List[Move]
+    fields: Tuple[NestedField, ...], adds: List[NestedField], moves: List[_Move]
 ) -> Optional[Tuple[NestedField, ...]]:
     if len(adds) > 0:
         # always apply adds first so that added fields can be moved

pyiceberg/table/update/snapshot.py

@@ -307,7 +307,7 @@ def fetch_manifest_entry(self, manifest: ManifestFile, discard_deleted: bool = T
         return manifest.fetch_manifest_entry(io=self._io, discard_deleted=discard_deleted)
 
 
-class DeleteFiles(_SnapshotProducer["DeleteFiles"]):
+class _DeleteFiles(_SnapshotProducer["_DeleteFiles"]):
     """Will delete manifest entries from the current snapshot based on the predicate.
 
     This will produce a DELETE snapshot:
@@ -443,7 +443,7 @@ def files_affected(self) -> bool:
         return len(self._deleted_entries()) > 0
 
 
-class FastAppendFiles(_SnapshotProducer["FastAppendFiles"]):
+class _FastAppendFiles(_SnapshotProducer["_FastAppendFiles"]):
     def _existing_manifests(self) -> List[ManifestFile]:
         """To determine if there are any existing manifest files.
 
@@ -472,7 +472,7 @@ def _deleted_entries(self) -> List[ManifestEntry]:
         return []
 
 
-class MergeAppendFiles(FastAppendFiles):
+class _MergeAppendFiles(_FastAppendFiles):
     _target_size_bytes: int
     _min_count_to_merge: int
     _merge_enabled: bool
@@ -507,7 +507,7 @@ def __init__(
     def _process_manifests(self, manifests: List[ManifestFile]) -> List[ManifestFile]:
         """To perform any post-processing on the manifests before writing them to the new snapshot.
 
-        In MergeAppendFiles, we merge manifests based on the target size and the minimum count to merge
+        In _MergeAppendFiles, we merge manifests based on the target size and the minimum count to merge
         if automatic merge is enabled.
         """
         unmerged_data_manifests = [manifest for manifest in manifests if manifest.content == ManifestContent.DATA]
@@ -523,7 +523,7 @@ def _process_manifests(self, manifests: List[ManifestFile]) -> List[ManifestFile
         return data_manifest_merge_manager.merge_manifests(unmerged_data_manifests) + unmerged_deletes_manifests
 
 
-class OverwriteFiles(_SnapshotProducer["OverwriteFiles"]):
+class _OverwriteFiles(_SnapshotProducer["_OverwriteFiles"]):
     """Overwrites data from the table. This will produce an OVERWRITE snapshot.
 
     Data and delete files were added and removed in a logical overwrite operation.
@@ -610,18 +610,18 @@ def __init__(self, transaction: Transaction, io: FileIO, snapshot_properties: Di
         self._io = io
         self._snapshot_properties = snapshot_properties
 
-    def fast_append(self) -> FastAppendFiles:
-        return FastAppendFiles(
+    def fast_append(self) -> _FastAppendFiles:
+        return _FastAppendFiles(
             operation=Operation.APPEND, transaction=self._transaction, io=self._io, snapshot_properties=self._snapshot_properties
         )
 
-    def merge_append(self) -> MergeAppendFiles:
-        return MergeAppendFiles(
+    def merge_append(self) -> _MergeAppendFiles:
+        return _MergeAppendFiles(
             operation=Operation.APPEND, transaction=self._transaction, io=self._io, snapshot_properties=self._snapshot_properties
         )
 
-    def overwrite(self, commit_uuid: Optional[uuid.UUID] = None) -> OverwriteFiles:
-        return OverwriteFiles(
+    def overwrite(self, commit_uuid: Optional[uuid.UUID] = None) -> _OverwriteFiles:
+        return _OverwriteFiles(
             commit_uuid=commit_uuid,
             operation=Operation.OVERWRITE
             if self._transaction.table_metadata.current_snapshot() is not None
@@ -631,8 +631,8 @@ def overwrite(self, commit_uuid: Optional[uuid.UUID] = None) -> OverwriteFiles:
             snapshot_properties=self._snapshot_properties,
         )
 
-    def delete(self) -> DeleteFiles:
-        return DeleteFiles(
+    def delete(self) -> _DeleteFiles:
+        return _DeleteFiles(
             operation=Operation.DELETE,
             transaction=self._transaction,
             io=self._io,

tests/table/test_init.py

@@ -1243,3 +1243,18 @@ def test_update_metadata_log_overflow(table_v2: Table) -> None:
         table_v2.metadata_location,
     )
     assert len(new_metadata.metadata_log) == 1
+
+
+def test_table_module_refactoring_backward_compatibility() -> None:
+    # TODO: Remove this in 0.9.0
+    try:
+        from pyiceberg.table import (  # noqa: F401
+            DeleteFiles,
+            FastAppendFiles,
+            MergeAppendFiles,
+            Move,
+            MoveOperation,
+            OverwriteFiles,
+        )
+    except Exception as exc:
+        raise pytest.fail("Importing moved modules should not raise an exception") from exc