From 575a038f9762ab142948d6d36a4ec3a37b8f7833 Mon Sep 17 00:00:00 2001
From: Hugo van Kemenade <hugovk@users.noreply.github.com>
Date: Sun, 2 Apr 2023 21:32:18 +0300
Subject: [PATCH] Remove FitsStubImagePlugin, deprecated in 9.1.0

---
 Tests/test_file_fits.py        | 38 +----------------
 docs/deprecations.rst          | 18 ++++----
 src/PIL/FitsStubImagePlugin.py | 76 ----------------------------------
 src/PIL/__init__.py            |  1 -
 4 files changed, 10 insertions(+), 123 deletions(-)
 delete mode 100644 src/PIL/FitsStubImagePlugin.py

diff --git a/Tests/test_file_fits.py b/Tests/test_file_fits.py
index 6f988729f..68b3eb567 100644
--- a/Tests/test_file_fits.py
+++ b/Tests/test_file_fits.py
@@ -2,7 +2,7 @@ from io import BytesIO
 
 import pytest
 
-from PIL import FitsImagePlugin, FitsStubImagePlugin, Image
+from PIL import FitsImagePlugin, Image
 
 from .helper import assert_image_equal, hopper
 
@@ -48,39 +48,3 @@ def test_comment():
     image_data = b"SIMPLE  =                    T / comment string"
     with pytest.raises(OSError):
         FitsImagePlugin.FitsImageFile(BytesIO(image_data))
-
-
-def test_stub_deprecated():
-    class Handler:
-        opened = False
-        loaded = False
-
-        def open(self, im):
-            self.opened = True
-
-        def load(self, im):
-            self.loaded = True
-            im.fp.close()
-            return Image.new("RGB", (1, 1))
-
-    handler = Handler()
-    with pytest.warns(DeprecationWarning):
-        FitsStubImagePlugin.register_handler(handler)
-
-    with Image.open(TEST_FILE) as im:
-        assert im.format == "FITS"
-        assert im.size == (128, 128)
-        assert im.mode == "L"
-
-        assert handler.opened
-        assert not handler.loaded
-
-        im.load()
-        assert handler.loaded
-
-    FitsStubImagePlugin._handler = None
-    Image.register_open(
-        FitsImagePlugin.FitsImageFile.format,
-        FitsImagePlugin.FitsImageFile,
-        FitsImagePlugin._accept,
-    )
diff --git a/docs/deprecations.rst b/docs/deprecations.rst
index 8606ede4d..577cd6c27 100644
--- a/docs/deprecations.rst
+++ b/docs/deprecations.rst
@@ -12,15 +12,6 @@ Deprecated features
 Below are features which are considered deprecated. Where appropriate,
 a ``DeprecationWarning`` is issued.
 
-FitsStubImagePlugin
-~~~~~~~~~~~~~~~~~~~
-
-.. deprecated:: 9.1.0
-
-The stub image plugin ``FitsStubImagePlugin`` has been deprecated and will be removed in
-Pillow 10.0.0 (2023-07-01). FITS images can be read without a handler through
-:mod:`~PIL.FitsImagePlugin` instead.
-
 FreeTypeFont.getmask2 fill parameter
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
@@ -207,6 +198,15 @@ Removed                                                Use instead
 ``PngImagePlugin.APNG_BLEND_OP_OVER``                  ``PngImagePlugin.Blend.OP_OVER``
 =====================================================  ============================================================
 
+FitsStubImagePlugin
+~~~~~~~~~~~~~~~~~~~
+
+.. deprecated:: 9.1.0
+.. versionremoved:: 10.0.0
+
+The stub image plugin ``FitsStubImagePlugin`` has been removed.
+FITS images can be read without a handler through :mod:`~PIL.FitsImagePlugin` instead.
+
 PyQt5 and PySide2
 ~~~~~~~~~~~~~~~~~
 
diff --git a/src/PIL/FitsStubImagePlugin.py b/src/PIL/FitsStubImagePlugin.py
deleted file mode 100644
index 50948ec42..000000000
--- a/src/PIL/FitsStubImagePlugin.py
+++ /dev/null
@@ -1,76 +0,0 @@
-#
-# The Python Imaging Library
-# $Id$
-#
-# FITS stub adapter
-#
-# Copyright (c) 1998-2003 by Fredrik Lundh
-#
-# See the README file for information on usage and redistribution.
-#
-
-from . import FitsImagePlugin, Image, ImageFile
-from ._deprecate import deprecate
-
-_handler = None
-
-
-def register_handler(handler):
-    """
-    Install application-specific FITS image handler.
-
-    :param handler: Handler object.
-    """
-    global _handler
-    _handler = handler
-
-    deprecate(
-        "FitsStubImagePlugin",
-        10,
-        action="FITS images can now be read without "
-        "a handler through FitsImagePlugin instead",
-    )
-
-    # Override FitsImagePlugin with this handler
-    # for backwards compatibility
-    try:
-        Image.ID.remove(FITSStubImageFile.format)
-    except ValueError:
-        pass
-
-    Image.register_open(
-        FITSStubImageFile.format, FITSStubImageFile, FitsImagePlugin._accept
-    )
-
-
-class FITSStubImageFile(ImageFile.StubImageFile):
-    format = FitsImagePlugin.FitsImageFile.format
-    format_description = FitsImagePlugin.FitsImageFile.format_description
-
-    def _open(self):
-        offset = self.fp.tell()
-
-        im = FitsImagePlugin.FitsImageFile(self.fp)
-        self._size = im.size
-        self.mode = im.mode
-        self.tile = []
-
-        self.fp.seek(offset)
-
-        loader = self._load()
-        if loader:
-            loader.open(self)
-
-    def _load(self):
-        return _handler
-
-
-def _save(im, fp, filename):
-    msg = "FITS save handler not installed"
-    raise OSError(msg)
-
-
-# --------------------------------------------------------------------
-# Registry
-
-Image.register_save(FITSStubImageFile.format, _save)
diff --git a/src/PIL/__init__.py b/src/PIL/__init__.py
index 32d2381f3..2bb8f6d7f 100644
--- a/src/PIL/__init__.py
+++ b/src/PIL/__init__.py
@@ -31,7 +31,6 @@ _plugins = [
     "DdsImagePlugin",
     "EpsImagePlugin",
     "FitsImagePlugin",
-    "FitsStubImagePlugin",
     "FliImagePlugin",
     "FpxImagePlugin",
     "FtexImagePlugin",