From d02f91c6da0a7d0d7c5020b636f4c423cb6e38cd Mon Sep 17 00:00:00 2001
From: Andrew Murray <radarhere@users.noreply.github.com>
Date: Sat, 17 Sep 2022 20:11:55 +1000
Subject: [PATCH] Raise a warning if NumPy will not raise an error during
 conversion

---
 Tests/test_image_array.py |  7 +++++--
 src/PIL/Image.py          | 24 ++++++++++++++++++------
 2 files changed, 23 insertions(+), 8 deletions(-)

diff --git a/Tests/test_image_array.py b/Tests/test_image_array.py
index 7e5fd6fe13c..ae3518e44cb 100644
--- a/Tests/test_image_array.py
+++ b/Tests/test_image_array.py
@@ -35,10 +35,13 @@ def test_with_dtype(dtype):
     test_with_dtype(numpy.float64)
     test_with_dtype(numpy.uint8)
 
-    if parse_version(numpy.__version__) >= parse_version("1.23"):
-        with Image.open("Tests/images/truncated_jpeg.jpg") as im_truncated:
+    with Image.open("Tests/images/truncated_jpeg.jpg") as im_truncated:
+        if parse_version(numpy.__version__) >= parse_version("1.23"):
             with pytest.raises(OSError):
                 numpy.array(im_truncated)
+        else:
+            with pytest.warns(UserWarning):
+                numpy.array(im_truncated)
 
 
 def test_fromarray():
diff --git a/src/PIL/Image.py b/src/PIL/Image.py
index d2819e07662..b2f4a3530d9 100644
--- a/src/PIL/Image.py
+++ b/src/PIL/Image.py
@@ -679,12 +679,24 @@ def __array_interface__(self):
         new["shape"] = shape
         new["typestr"] = typestr
         new["version"] = 3
-        if self.mode == "1":
-            # Binary images need to be extended from bits to bytes
-            # See: https://github.com/python-pillow/Pillow/issues/350
-            new["data"] = self.tobytes("raw", "L")
-        else:
-            new["data"] = self.tobytes()
+        try:
+            if self.mode == "1":
+                # Binary images need to be extended from bits to bytes
+                # See: https://github.com/python-pillow/Pillow/issues/350
+                new["data"] = self.tobytes("raw", "L")
+            else:
+                new["data"] = self.tobytes()
+        except Exception as e:
+            if not isinstance(e, (MemoryError, RecursionError)):
+                try:
+                    import numpy
+                    from packaging.version import parse as parse_version
+                except ImportError:
+                    pass
+                else:
+                    if parse_version(numpy.__version__) < parse_version("1.23"):
+                        warnings.warn(e)
+            raise
         return new
 
     def __getstate__(self):