remove _size and _mode getters

src/PIL/GifImagePlugin.py

@@ -276,7 +276,7 @@ def _seek(self, frame: int, update_image: bool = True) -> None:
                 x1, y1 = x0 + i16(s, 4), y0 + i16(s, 6)
                 if (x1 > self.size[0] or y1 > self.size[1]) and update_image:
                     self._size = max(x1, self.size[0]), max(y1, self.size[1])
-                    Image._decompression_bomb_check(self._size)
+                    Image._decompression_bomb_check(self.size)
                 frame_dispose_extent = x0, y0, x1, y1
                 flags = s[8]
 

src/PIL/Image.py

@@ -570,38 +570,36 @@ def height(self) -> int:
 
     @property
     def size(self) -> tuple[int, int]:
-        return self._size
-
-    @property
-    def _size(self) -> tuple[int, int]:
         if self._use_im_values():
             return self.im.size
         return self.__size
 
-    @_size.setter
-    def _size(self, value: tuple[int, int]) -> None:
+    def _set_size(self, value: tuple[int, int]) -> None:
         # set im.size first in case it raises an exception
         if self._use_im_values():
             self.im.size = value
         self.__size = value
 
-    @property
-    def mode(self) -> str:
-        return self._mode
+    # MyPy doesn't support "x = property(...)"
+    # https://github.com/python/mypy/issues/8083
+    _size: tuple[int, int] = cast(Tuple[int, int], property(fset=_set_size))
 
     @property
-    def _mode(self) -> str:
+    def mode(self) -> str:
         if self._use_im_values():
             return self.im.mode
         return self.__mode
 
-    @_mode.setter
-    def _mode(self, value: str) -> None:
+    def _set_mode(self, value: str) -> None:
         # set im.mode first in case it raises an exception
         if self._use_im_values():
             self.im.mode = value
         self.__mode = value
 
+    # MyPy doesn't support "x = property(...)"
+    # https://github.com/python/mypy/issues/8083
+    _mode: str = cast(str, property(fset=_set_mode))
+
     def _new(self, im: core.ImagingCore) -> Image:
         new = Image()
         new.im = im

src/PIL/ImageOps.py

@@ -699,7 +699,7 @@ def exif_transpose(image: Image.Image, *, in_place: bool = False) -> Image.Image
         if in_place:
             image.im = transposed_image.im
             image.pyaccess = None
-            image._size = transposed_image._size
+            image._size = transposed_image.size
         exif_image = image if in_place else transposed_image
 
         exif = exif_image.getexif()

src/PIL/PcxImagePlugin.py

@@ -118,7 +118,7 @@ def _open(self) -> None:
         # Don't trust the passed in stride.
         # Calculate the approximate position for ourselves.
         # CVE-2020-35653
-        stride = (self._size[0] * bits + 7) // 8
+        stride = (self.size[0] * bits + 7) // 8
 
         # While the specification states that this must be even,
         # not all images follow this

src/PIL/QoiImagePlugin.py

@@ -32,7 +32,7 @@ def _open(self) -> None:
         self._mode = "RGB" if channels == 3 else "RGBA"
 
         self.fp.seek(1, os.SEEK_CUR)  # colorspace
-        self.tile = [("qoi", (0, 0) + self._size, self.fp.tell(), None)]
+        self.tile = [("qoi", (0, 0) + self.size, self.fp.tell(), None)]
 
 
 class QoiDecoder(ImageFile.PyDecoder):