Added type hints

src/PIL/Image.py

@@ -1418,7 +1418,7 @@ def get_value(element):
             root = ElementTree.fromstring(xmp_tags)
             return {get_name(root.tag): get_value(root)}
 
-    def getexif(self):
+    def getexif(self) -> Exif:
         """
         Gets EXIF data from the image.
 
@@ -1513,7 +1513,7 @@ def getim(self):
         self.load()
         return self.im.ptr
 
-    def getpalette(self, rawmode="RGB"):
+    def getpalette(self, rawmode: str = "RGB") -> list[int, ...]:
         """
         Returns the image palette as a list.
 
@@ -1603,7 +1603,7 @@ def getprojection(self):
         x, y = self.im.getprojection()
         return list(x), list(y)
 
-    def histogram(self, mask=None, extrema=None):
+    def histogram(self, mask=None, extrema=None) -> list[int, ...]:
         """
         Returns a histogram for the image. The histogram is returned as a
         list of pixel counts, one for each pixel value in the source
@@ -1792,7 +1792,7 @@ def alpha_composite(self, im, dest=(0, 0), source=(0, 0)):
         result = alpha_composite(background, overlay)
         self.paste(result, box)
 
-    def point(self, lut, mode=None):
+    def point(self, lut, mode: str | None = None) -> Image:
         """
         Maps this image through a lookup table or function.
 
@@ -1916,7 +1916,7 @@ def putdata(self, data, scale=1.0, offset=0.0):
 
         self.im.putdata(data, scale, offset)
 
-    def putpalette(self, data, rawmode="RGB"):
+    def putpalette(self, data, rawmode="RGB") -> None:
         """
         Attaches a palette to this image.  The image must be a "P", "PA", "L"
         or "LA" image.
@@ -2096,7 +2096,7 @@ def _get_safe_box(self, size, resample, box):
             min(self.size[1], math.ceil(box[3] + support_y)),
         )
 
-    def resize(self, size, resample=None, box=None, reducing_gap=None):
+    def resize(self, size, resample=None, box=None, reducing_gap=None) -> Image:
         """
         Returns a resized copy of this image.
 
@@ -2810,7 +2810,7 @@ def __transformer(
 
         self.im.transform2(box, image.im, method, data, resample, fill)
 
-    def transpose(self, method):
+    def transpose(self, method: Transpose) -> Image:
         """
         Transpose image (flip or rotate in 90 degree steps)
 
@@ -3782,7 +3782,7 @@ def _get_merged_dict(self):
 
         return merged_dict
 
-    def tobytes(self, offset=8):
+    def tobytes(self, offset: int = 8) -> bytes:
         from . import TiffImagePlugin
 
         head = self._get_head()
@@ -3937,7 +3937,7 @@ def __setitem__(self, tag, value):
             del self._info[tag]
         self._data[tag] = value
 
-    def __delitem__(self, tag):
+    def __delitem__(self, tag: int) -> None:
         if self._info is not None and tag in self._info:
             del self._info[tag]
         else:

src/PIL/ImageColor.py

@@ -124,7 +124,7 @@ def getrgb(color):
 
 
 @lru_cache
-def getcolor(color, mode):
+def getcolor(color, mode: str) -> tuple[int, ...]:
     """
     Same as :py:func:`~PIL.ImageColor.getrgb` for most modes. However, if
     ``mode`` is HSV, converts the RGB value to a HSV value, or if ``mode`` is