Deprecate ImageCmsProfile product_name and product_info

Tests/test_imagecms.py

@@ -710,8 +710,18 @@ def test_deprecation() -> None:
     with pytest.warns(DeprecationWarning):
         assert isinstance(ImageCms.FLAGS, dict)
 
-    profile = ImageCmsProfile(ImageCms.createProfile("sRGB"))
+    p = ImageCms.createProfile("sRGB")
+    profile = ImageCmsProfile(p)
     with pytest.warns(DeprecationWarning):
         ImageCms.ImageCmsTransform(profile, profile, "RGBA;16B", "RGB")
     with pytest.warns(DeprecationWarning):
         ImageCms.ImageCmsTransform(profile, profile, "RGB", "RGBA;16B")
+
+    with pytest.warns(DeprecationWarning):
+        profile.product_name
+    with pytest.warns(DeprecationWarning):
+        profile.product_info
+    with pytest.warns(DeprecationWarning):
+        profile._set(p)
+    with pytest.raises(AttributeError):
+        profile.this_attribute_does_not_exist

docs/deprecations.rst

@@ -193,6 +193,29 @@ Image.Image.get_child_images()
 method uses an image's file pointer, and so child images could only be retrieved from
 an :py:class:`PIL.ImageFile.ImageFile` instance.
 
+ImageCms.ImageCmsProfile._set
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+.. deprecated:: 11.3.0
+
+``ImageCms.ImageCmsProfile._set()`` has been deprecated, and will be removed in
+Pillow 13 (2026-10-15). You should construct a new ``ImageCmsProfile`` instance
+instead.
+
+ImageCms.ImageCmsProfile.product_name and .product_info
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+.. deprecated:: 11.3.0
+
+``ImageCms.ImageCmsProfile.product_name`` and the corresponding
+``.product_info`` attributes have been deprecated, and will be removed in
+Pillow 13 (2026-10-15). These attributes can be accessed on the ``.profile``
+attribute of ``ImageCmsProfile`` instead.
+
+Note that ``.product_name`` and ``.product_info`` have been set to ``None`` on
+``ImageCmsProfile`` since Pillow 2.3.0 (2014-01-01), so any working code that
+makes use of this data will already access it on ``.profile``.
+
 Removed features
 ----------------
 

src/PIL/ImageCms.py

@@ -241,13 +241,17 @@
 
 
 class ImageCmsProfile:
+    profile: core.CmsProfile
+    filename: str | None
+
     def __init__(self, profile: str | SupportsRead[bytes] | core.CmsProfile) -> None:
         """
         :param profile: Either a string representing a filename,
             a file like object containing a profile or a
             low-level profile object
 
         """
+        self.filename = None
 
         if isinstance(profile, str):
             if sys.platform == "win32":
@@ -256,22 +260,40 @@
                     profile_bytes_path.decode("ascii")
                 except UnicodeDecodeError:
                     with open(profile, "rb") as f:
-                        self._set(core.profile_frombytes(f.read()))
+                        self.profile = core.profile_frombytes(f.read())
                     return
-            self._set(core.profile_open(profile), profile)
+            self.filename = profile
+            self.profile = core.profile_open(profile)
         elif hasattr(profile, "read"):
-            self._set(core.profile_frombytes(profile.read()))
+            self.profile = core.profile_frombytes(profile.read())
         elif isinstance(profile, core.CmsProfile):
-            self._set(profile)
+            self.profile = profile
         else:
             msg = "Invalid type for Profile"  # type: ignore[unreachable]
             raise TypeError(msg)
 
+    def __getattr__(self, attr: str) -> Any:
+        if attr in ("product_name", "product_info"):
+            deprecate(
+                f"ImageCms.ImageCmsProfile.{attr}",
+                13,
+                action=(
+                    f"Use ImageCms.ImageCmsProfile.profile.{attr} instead. "
+                    f"Note that {attr} has been set to 'None' since Pillow 2.3.0."
+                ),
+            )
+            return None
+        msg = f"'{self.__class__.__name__}' has no attribute '{attr}'"
+        raise AttributeError(msg)
+
     def _set(self, profile: core.CmsProfile, filename: str | None = None) -> None:
+        deprecate(
+            "ImageCmsProfile._set",
+            13,
+            action="Set the 'profile' and 'filename' attributes directly instead.",
+        )
         self.profile = profile
         self.filename = filename
-        self.product_name = None  # profile.product_name
-        self.product_info = None  # profile.product_info
 
     def tobytes(self) -> bytes:
         """