Deprecate ImageCmsProfile product_name and product_info (#8995)

Co-authored-by: Andrew Murray <[email protected]>

Author: lukegb

Tests/test_imagecms.py

@@ -690,3 +690,17 @@ def test_cmyk_lab() -> None:
     im = Image.new("CMYK", (1, 1))
     converted_im = im.convert("LAB")
     assert converted_im.getpixel((0, 0)) == (255, 128, 128)
+
+
+def test_deprecation() -> None:
+    profile = ImageCmsProfile(ImageCms.createProfile("sRGB"))
+    with pytest.warns(
+        DeprecationWarning, match="ImageCms.ImageCmsProfile.product_name"
+    ):
+        profile.product_name
+    with pytest.warns(
+        DeprecationWarning, match="ImageCms.ImageCmsProfile.product_info"
+    ):
+        profile.product_info
+    with pytest.raises(AttributeError):
+        profile.this_attribute_does_not_exist

docs/deprecations.rst

@@ -52,6 +52,15 @@ another mode before saving::
     im = Image.new("I", (1, 1))
     im.convert("I;16").save("out.png")
 
+ImageCms.ImageCmsProfile.product_name and .product_info
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+.. deprecated:: 12.0.0
+
+``ImageCms.ImageCmsProfile.product_name`` and the corresponding
+``.product_info`` attributes have been deprecated, and will be removed in
+Pillow 13 (2026-10-15). They have been set to ``None`` since Pillow 2.3.0.
+
 Removed features
 ----------------
 

docs/releasenotes/12.0.0.rst

@@ -110,10 +110,12 @@ vulnerability introduced in FreeType 2.6 (:cve:`2020-15999`).
 Deprecations
 ============
 
-TODO
-^^^^
+ImageCms.ImageCmsProfile.product_name and .product_info
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-TODO
+``ImageCms.ImageCmsProfile.product_name`` and the corresponding
+``.product_info`` attributes have been deprecated, and will be removed in
+Pillow 13 (2026-10-15). They have been set to ``None`` since Pillow 2.3.0.
 
 API changes
 ===========

src/PIL/ImageCms.py

@@ -23,9 +23,10 @@
 import sys
 from enum import IntEnum, IntFlag
 from functools import reduce
-from typing import Literal, SupportsFloat, SupportsInt, Union
+from typing import Any, Literal, SupportsFloat, SupportsInt, Union
 
 from . import Image
+from ._deprecate import deprecate
 from ._typing import SupportsRead
 
 try:
@@ -233,9 +234,7 @@ def __init__(self, profile: str | SupportsRead[bytes] | core.CmsProfile) -> None
             low-level profile object
 
         """
-        self.filename = None
-        self.product_name = None  # profile.product_name
-        self.product_info = None  # profile.product_info
+        self.filename: str | None = None
 
         if isinstance(profile, str):
             if sys.platform == "win32":
@@ -256,6 +255,13 @@ def __init__(self, profile: str | SupportsRead[bytes] | core.CmsProfile) -> None
             msg = "Invalid type for Profile"  # type: ignore[unreachable]
             raise TypeError(msg)
 
+    def __getattr__(self, name: str) -> Any:
+        if name in ("product_name", "product_info"):
+            deprecate(f"ImageCms.ImageCmsProfile.{name}", 13)
+            return None
+        msg = f"'{self.__class__.__name__}' object has no attribute '{name}'"
+        raise AttributeError(msg)
+
     def tobytes(self) -> bytes:
         """
         Returns the profile in a format suitable for embedding in