Mypy error -- doesn't like the none return

wiredfool · wiredfool · commit 7d498c3c489e · 2025-02-18T23:02:26.000Z
diff --git a/src/PIL/Image.py b/src/PIL/Image.py
@@ -3357,7 +3357,7 @@ def fromarrow(obj: SupportsArrowArrayInterface, mode, size) -> Image:
     if _im:
         return Image()._new(_im)
 
-    return None
+    raise ValueError("new_arrow returned None without an exception")
 
 
 def fromqimage(im: ImageQt.QImage) -> ImageFile.ImageFile:
