add typing

src/PIL/IcnsImagePlugin.py

@@ -262,9 +262,9 @@ def _open(self) -> None:
             self.best_size[1] * self.best_size[2],
         )
 
-    @Image.Image.size.setter
-    def size(self, value):
-        info_size = value
+    @Image.Image._size.setter
+    def size(self, value: tuple[int, int]) -> None:
+        info_size: tuple[int, ...] = value
         if info_size not in self.info["sizes"] and len(info_size) == 2:
             info_size = (info_size[0], info_size[1], 1)
         if (

src/PIL/IcoImagePlugin.py

@@ -308,8 +308,8 @@ def _open(self) -> None:
         self.size = self.ico.entry[0]["dim"]
         self.load()
 
-    @Image.Image.size.setter
-    def size(self, value):
+    @Image.Image._size.setter
+    def size(self, value: tuple[int, int]) -> None:
         if value not in self.info["sizes"]:
             msg = "This is not one of the allowed sizes of this image"
             raise ValueError(msg)

src/PIL/Image.py

@@ -532,7 +532,7 @@ def __init__(self):
         self.pyaccess = None
         self._exif = None
 
-    def _use_im_values(self):
+    def _use_im_values(self) -> bool:
         """
         Whether or not to try using values from self.im
         in addition to the values in this class.
@@ -548,32 +548,36 @@ def height(self) -> int:
         return self.size[1]
 
     @property
-    def size(self) -> tuple[int, int]:
+    def size(self) -> tuple[int, int] | None:
         if self._use_im_values():
             return self.im.size
         return self.__size
 
-    def _set_size(self, value):
+    def _set_size(self, value: tuple[int, int] | None) -> None:
         # set im.size first in case it raises an exception
         if self._use_im_values():
             self.im.size = value
         self.__size = value
 
-    _size = property(fset=_set_size)
+    # 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):
+    def mode(self) -> str | None:
         if self._use_im_values():
             return self.im.mode
         return self.__mode
 
-    def _set_mode(self, value):
+    def _set_mode(self, value: str | None) -> None:
         # set im.mode first in case it raises an exception
         if self._use_im_values():
             self.im.mode = value
         self.__mode = value
 
-    _mode = property(fset=_set_mode)
+    # 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) -> Image:
         new = Image()
@@ -774,7 +778,7 @@ def __setstate__(self, state) -> None:
             self.putpalette(palette)
         self.frombytes(data)
 
-    def tobytes(self, encoder_name: str = "raw", *args) -> bytes:
+    def tobytes(self, encoder_name: str = "raw", *args: Any) -> bytes:
         """
         Return image as a bytes object.
 
@@ -801,7 +805,7 @@ def tobytes(self, encoder_name: str = "raw", *args) -> bytes:
             args = args[0]
 
         if encoder_name == "raw" and args == ():
-            args = self.mode
+            args = (self.mode,)
 
         self.load()
 
@@ -852,7 +856,7 @@ def tobitmap(self, name: str = "image") -> bytes:
             ]
         )
 
-    def frombytes(self, data: bytes, decoder_name: str = "raw", *args) -> None:
+    def frombytes(self, data: bytes, decoder_name: str = "raw", *args: Any) -> None:
         """
         Loads this image with pixel data from a bytes object.
 
@@ -869,7 +873,7 @@ def frombytes(self, data: bytes, decoder_name: str = "raw", *args) -> None:
 
         # default format
         if decoder_name == "raw" and args == ():
-            args = self.mode
+            args = (self.mode,)
 
         # unpack data
         d = _getdecoder(self.mode, decoder_name, args)

src/PIL/ImageFile.py

@@ -159,7 +159,7 @@ def get_format_mimetype(self):
         if self.format is not None:
             return Image.MIME.get(self.format.upper())
 
-    def _use_im_values(self):
+    def _use_im_values(self) -> bool:
         return self.tile is None and self.im is not None
 
     def __setstate__(self, state):

src/PIL/QoiImagePlugin.py

@@ -26,7 +26,7 @@ def _open(self) -> None:
             msg = "not a QOI file"
             raise SyntaxError(msg)
 
-        self._size = tuple(i32(self.fp.read(4)) for i in range(2))
+        self._size = (i32(self.fp.read(4)), i32(self.fp.read(4)))
 
         channels = self.fp.read(1)[0]
         self._mode = "RGB" if channels == 3 else "RGBA"