Fixed passing zero dimension images into fromarrow()

Tests/test_pyarrow.py

@@ -283,3 +283,9 @@ def test_image_metadata(mode: str, metadata: list[str]) -> None:
 
     assert "bands" in parsed_metadata
     assert parsed_metadata["bands"] == metadata
+
+
+def test_zero_dimension() -> None:
+    array = pyarrow.array([], type=pyarrow.uint8())
+    assert Image.fromarrow(array, "L", (0, 7)).size == (0, 7)
+    assert Image.fromarrow(array, "L", (7, 0)).size == (7, 0)

src/PIL/Image.py

@@ -3516,7 +3516,7 @@ def fromarrow(
 
     schema_capsule, array_capsule = obj.__arrow_c_array__()
     _im = core.new_arrow(mode, size, schema_capsule, array_capsule)
-    if _im:
+    if _im is not None:
         return Image()._new(_im)
 
     msg = "new_arrow returned None without an exception"