From ae0a02b75e5201424638159286b835f8e6a93f81 Mon Sep 17 00:00:00 2001
From: "J.P. Dark" <24235303+jp-dark@users.noreply.github.com>
Date: Mon, 23 Oct 2023 15:27:48 -0400
Subject: [PATCH] Fix failing tests in older versions of Python

---
 tiledb/cf/core/_fragment_writer.py | 18 +++++++++---------
 tiledb/cf/core/source.py           |  3 ++-
 2 files changed, 11 insertions(+), 10 deletions(-)

diff --git a/tiledb/cf/core/_fragment_writer.py b/tiledb/cf/core/_fragment_writer.py
index 73edc39..3b012be 100644
--- a/tiledb/cf/core/_fragment_writer.py
+++ b/tiledb/cf/core/_fragment_writer.py
@@ -115,7 +115,7 @@ def write(self, array: tiledb.libtiledb.Array, *, skip_metadata: bool = False):
             if hasattr(attr_data, "fill") and attr_data.fill != attr.fill[0]:
                 attr_data.fill = attr.fill
 
-        array[*region] = {name: data.values for name, data in self._attr_data.items()}
+        array[region] = {name: data.values for name, data in self._attr_data.items()}
 
         if not skip_metadata:
             for name, data in self._attr_data.items():
@@ -152,7 +152,7 @@ def __init__(
         )
         self._size = np.prod(self._shape)
 
-    def coordinates(self):
+    def coordinates(self) -> Tuple[np.ndarray]:
         def create_coords(dim_range, dtype):
             if dtype.kind in {"u", "i"}:
                 dt = 1
@@ -188,15 +188,15 @@ def shape(self) -> Optional[Tuple[int, ...]]:
     def size(self) -> int:
         return self._size
 
-    def subarray(self) -> List[slice, ...]:
-        return [
+    def subarray(self) -> Tuple[slice, ...]:
+        return tuple(
             (
                 slice(dim_range[0], dim_range[1] + 1)
                 if np.issubdtype(type(dim_range[1]), np.integer)
                 else slice(dim_range[0], dim_range[1])
             )
             for dim_range in self._region
-        ]
+        )
 
     def write_metadata(self, array: tiledb.libtiledb.Array):
         """Write any metadata associated with this region."""
@@ -211,7 +211,7 @@ def __init__(self, dims: Tuple[SharedDim], size: int):
         # Set the size of the data.
         self._size = size
 
-    def coordinates(self):
+    def coordinates(self) -> Tuple[np.ndarray]:
         for idim, data in enumerate(self._dim_data):
             if data is None:
                 raise ValueError(
@@ -247,7 +247,7 @@ def shape(self) -> Optional[Tuple[int, ...]]:
     def size(self) -> int:
         return self._size
 
-    def subarray(self) -> List[slice, ...]:
+    def subarray(self) -> Tuple[slice, ...]:
         raise RuntimeError("Cannot construct a subarray for a sparse region.")
 
     def write_metadata(self, array: tiledb.libtiledb.Array):
@@ -275,7 +275,7 @@ def __init__(self, dims: Tuple[SharedDim], shape: Tuple[int, ...]):
         self._shape = shape
         self._size = np.prod(shape)
 
-    def coordinates(self):
+    def coordinates(self) -> Tuple[np.ndarray]:
         for idim, data in enumerate(self._dim_data):
             if data is None:
                 raise ValueError(
@@ -315,7 +315,7 @@ def shape(self) -> Optional[Tuple[int, ...]]:
     def size(self) -> int:
         return self._size
 
-    def subarray(self) -> List[slice, ...]:
+    def subarray(self) -> Tuple[slice, ...]:
         raise RuntimeError("Cannot construct a subarray for a sparse region.")
 
     def write_metadata(self, array: tiledb.libtiledb.Array):
diff --git a/tiledb/cf/core/source.py b/tiledb/cf/core/source.py
index 50c0b52..9cb8cc8 100644
--- a/tiledb/cf/core/source.py
+++ b/tiledb/cf/core/source.py
@@ -1,6 +1,7 @@
-from typing import Any, Mapping, Optional, Protocol, Tuple, Union
+from typing import Any, Mapping, Optional, Tuple, Union
 
 import numpy as np
+from typing_extensions import Protocol
 
 
 class FieldData(Protocol):