updates

Backend/venv/lib/python3.12/site-packages/PIL/WalImageFile.py

@@ -22,16 +22,20 @@ and has been tested with a few sample files found using google.
     is not registered for use with :py:func:`PIL.Image.open()`.
     To open a WAL file, use the :py:func:`PIL.WalImageFile.open()` function instead.
 """
+from __future__ import annotations
+
+from typing import IO
 
 from . import Image, ImageFile
 from ._binary import i32le as i32
+from ._typing import StrOrBytesPath
 
 
 class WalImageFile(ImageFile.ImageFile):
     format = "WAL"
     format_description = "Quake2 Texture"
 
-    def _open(self):
+    def _open(self) -> None:
         self._mode = "P"
 
         # read header fields
@@ -45,19 +49,18 @@ class WalImageFile(ImageFile.ImageFile):
 
         # strings are null-terminated
         self.info["name"] = header[:32].split(b"\0", 1)[0]
-        next_name = header[56 : 56 + 32].split(b"\0", 1)[0]
-        if next_name:
+        if next_name := header[56 : 56 + 32].split(b"\0", 1)[0]:
             self.info["next_name"] = next_name
 
-    def load(self):
-        if not self.im:
+    def load(self) -> Image.core.PixelAccess | None:
+        if self._im is None:
             self.im = Image.core.new(self.mode, self.size)
             self.frombytes(self.fp.read(self.size[0] * self.size[1]))
             self.putpalette(quake2palette)
         return Image.Image.load(self)
 
 
-def open(filename):
+def open(filename: StrOrBytesPath | IO[bytes]) -> WalImageFile:
     """
     Load texture from a Quake2 WAL texture file.