Use lazy imports on Python 3.15 to improve startup speed

src/PIL/AvifImagePlugin.py

@@ -1,5 +1,7 @@
 from __future__ import annotations
 
+__lazy_modules__ = {"io", "os", "typing"}
+
 import os
 from io import BytesIO
 from typing import IO

src/PIL/BdfFontFile.py

@@ -23,6 +23,8 @@
 
 from __future__ import annotations
 
+__lazy_modules__ = {"typing"}
+
 from typing import BinaryIO
 
 from . import FontFile, Image

src/PIL/BlpImagePlugin.py

@@ -31,6 +31,8 @@
 
 from __future__ import annotations
 
+__lazy_modules__ = {"io", "os", "struct", "typing"}
+
 import abc
 import os
 import struct

src/PIL/BmpImagePlugin.py

@@ -24,6 +24,8 @@
 #
 from __future__ import annotations
 
+__lazy_modules__ = {"PIL._binary", "os", "typing"}
+
 import os
 from typing import IO, Any
 

src/PIL/BufrStubImagePlugin.py

@@ -10,6 +10,8 @@
 #
 from __future__ import annotations
 
+__lazy_modules__ = {"os", "typing"}
+
 import os
 from typing import IO
 

src/PIL/ContainerIO.py

@@ -15,6 +15,8 @@
 #
 from __future__ import annotations
 
+__lazy_modules__ = {"collections.abc", "io"}
+
 import io
 from collections.abc import Iterable
 from typing import IO, AnyStr, NoReturn

src/PIL/CurImagePlugin.py

@@ -17,6 +17,8 @@
 #
 from __future__ import annotations
 
+__lazy_modules__ = {"PIL._binary"}
+
 from . import BmpImagePlugin, Image, ImageOps
 from ._binary import i16le as i16
 from ._binary import i32le as i32

src/PIL/DcxImagePlugin.py

@@ -22,6 +22,8 @@
 #
 from __future__ import annotations
 
+__lazy_modules__ = {"PIL._binary", "PIL._util"}
+
 from . import Image
 from ._binary import i32le as i32
 from ._util import DeferredError

src/PIL/DdsImagePlugin.py

@@ -12,6 +12,8 @@
 
 from __future__ import annotations
 
+__lazy_modules__ = {"PIL._binary", "struct", "typing"}
+
 import struct
 import sys
 from enum import IntEnum, IntFlag

src/PIL/EpsImagePlugin.py

@@ -21,12 +21,13 @@
 #
 from __future__ import annotations
 
+__lazy_modules__ = {"PIL._binary", "io", "os", "subprocess", "tempfile", "typing"}
+
 import io
 import os
 import re
 import subprocess
 import sys
-import tempfile
 from typing import IO
 
 from . import Image, ImageFile
@@ -92,6 +93,8 @@ def Ghostscript(
     res_x = 72.0 * width / (bbox[2] - bbox[0])
     res_y = 72.0 * height / (bbox[3] - bbox[1])
 
+    import tempfile
+
     out_fd, outfile = tempfile.mkstemp()
     os.close(out_fd)
 

src/PIL/FitsImagePlugin.py

@@ -10,6 +10,8 @@
 #
 from __future__ import annotations
 
+__lazy_modules__ = {"gzip", "math"}
+
 import gzip
 import math
 

src/PIL/FliImagePlugin.py

@@ -16,6 +16,8 @@
 #
 from __future__ import annotations
 
+__lazy_modules__ = {"PIL._binary", "PIL._util", "os"}
+
 import os
 
 from . import Image, ImageFile, ImagePalette

src/PIL/FontFile.py

@@ -15,6 +15,8 @@
 #
 from __future__ import annotations
 
+__lazy_modules__ = {"os", "typing"}
+
 import os
 from typing import BinaryIO
 

src/PIL/FpxImagePlugin.py

@@ -16,6 +16,8 @@
 #
 from __future__ import annotations
 
+__lazy_modules__ = {"PIL._binary"}
+
 import olefile
 
 from . import Image, ImageFile

src/PIL/FtexImagePlugin.py

@@ -53,6 +53,8 @@
 
 from __future__ import annotations
 
+__lazy_modules__ = {"io", "struct"}
+
 import struct
 from enum import IntEnum
 from io import BytesIO

src/PIL/GbrImagePlugin.py

@@ -25,6 +25,8 @@
 #   the color depth field. This is currently unsupported by Pillow.
 from __future__ import annotations
 
+__lazy_modules__ = {"PIL._binary"}
+
 from . import Image, ImageFile
 from ._binary import i32be as i32
 

src/PIL/GdImageFile.py

@@ -28,6 +28,8 @@ class is not registered for use with :py:func:`PIL.Image.open()`.  To open a
 
 from __future__ import annotations
 
+__lazy_modules__ = {"PIL._binary", "PIL._typing", "typing"}
+
 from typing import IO
 
 from . import Image, ImageFile, ImagePalette, UnidentifiedImageError

src/PIL/GifImagePlugin.py

@@ -25,6 +25,16 @@
 #
 from __future__ import annotations
 
+__lazy_modules__ = {
+    "PIL._binary",
+    "PIL._util",
+    "functools",
+    "itertools",
+    "math",
+    "os",
+    "subprocess",
+}
+
 import itertools
 import math
 import os

src/PIL/GimpGradientFile.py

@@ -21,6 +21,8 @@
 
 from __future__ import annotations
 
+__lazy_modules__ = {"PIL._binary", "math"}
+
 from math import log, pi, sin, sqrt
 
 from ._binary import o8

src/PIL/GimpPaletteFile.py

@@ -15,6 +15,8 @@
 #
 from __future__ import annotations
 
+__lazy_modules__ = {"io", "re"}
+
 import re
 from io import BytesIO
 

src/PIL/GribStubImagePlugin.py

@@ -10,6 +10,8 @@
 #
 from __future__ import annotations
 
+__lazy_modules__ = {"os", "typing"}
+
 import os
 from typing import IO
 

src/PIL/Hdf5StubImagePlugin.py

@@ -10,6 +10,8 @@
 #
 from __future__ import annotations
 
+__lazy_modules__ = {"os", "typing"}
+
 import os
 from typing import IO
 

src/PIL/IcnsImagePlugin.py

@@ -18,6 +18,8 @@
 #
 from __future__ import annotations
 
+__lazy_modules__ = {"io", "os", "struct", "typing"}
+
 import io
 import os
 import struct

src/PIL/IcoImagePlugin.py

@@ -36,6 +36,8 @@
 #   * https://msdn.microsoft.com/en-us/library/ms997538.aspx
 from __future__ import annotations
 
+__lazy_modules__ = {"PIL._binary", "io", "math", "warnings"}
+
 import warnings
 from io import BytesIO
 from math import ceil, log

src/PIL/ImImagePlugin.py

@@ -26,6 +26,8 @@
 #
 from __future__ import annotations
 
+__lazy_modules__ = {"PIL._util", "os", "typing"}
+
 import os
 import re
 from typing import IO, Any

src/PIL/Image.py

@@ -26,6 +26,17 @@
 
 from __future__ import annotations
 
+__lazy_modules__ = {
+    "PIL._binary",
+    "PIL._deprecate",
+    "PIL._util",
+    "io",
+    "math",
+    "os",
+    "re",
+    "struct",
+}
+
 import abc
 import atexit
 import builtins
@@ -36,7 +47,6 @@
 import re
 import struct
 import sys
-import tempfile
 import warnings
 from collections.abc import MutableMapping
 from enum import IntEnum
@@ -57,16 +67,9 @@
 from ._deprecate import deprecate
 from ._util import DeferredError, is_path
 
-ElementTree: ModuleType | None
-try:
-    from defusedxml import ElementTree
-except ImportError:
-    ElementTree = None
-
 TYPE_CHECKING = False
 if TYPE_CHECKING:
     from collections.abc import Callable, Iterator, Sequence
-    from types import ModuleType
     from typing import Any, Literal
 
 logger = logging.getLogger(__name__)
@@ -738,6 +741,8 @@ def _dump(
             if not filename.endswith(suffix):
                 filename += suffix
         else:
+            import tempfile
+
             f, filename = tempfile.mkstemp(suffix)
             os.close(f)
 
@@ -1584,6 +1589,11 @@ def getxmp(self) -> dict[str, Any]:
 
         :returns: XMP tags in a dictionary.
         """
+        try:
+            from defusedxml import ElementTree
+        except ImportError:
+            warnings.warn("XMP data cannot be read without defusedxml dependency")
+            return {}
 
         def get_name(tag: str) -> str:
             return re.sub("^{[^}]+}", "", tag)
@@ -1608,9 +1618,6 @@ def get_value(element: Element) -> str | dict[str, Any] | None:
                 return element.text
             return value
 
-        if ElementTree is None:
-            warnings.warn("XMP data cannot be read without defusedxml dependency")
-            return {}
         if "xmp" not in self.info:
             return {}
         root = ElementTree.fromstring(self.info["xmp"].rstrip(b"\x00 "))

src/PIL/ImageCms.py

@@ -19,6 +19,8 @@
 # below for the original description.
 from __future__ import annotations
 
+__lazy_modules__ = {"PIL._deprecate"}
+
 import operator
 import sys
 from enum import IntEnum, IntFlag

src/PIL/ImageColor.py

@@ -18,6 +18,8 @@
 #
 from __future__ import annotations
 
+__lazy_modules__ = {"re"}
+
 import re
 from functools import lru_cache
 

src/PIL/ImageDraw.py

@@ -31,6 +31,8 @@
 #
 from __future__ import annotations
 
+__lazy_modules__ = {"collections.abc", "math", "struct", "typing"}
+
 import math
 import struct
 from collections.abc import Sequence

src/PIL/ImageDraw2.py

@@ -25,6 +25,8 @@
 
 from __future__ import annotations
 
+__lazy_modules__ = {"PIL._typing", "typing"}
+
 from typing import Any, AnyStr, BinaryIO
 
 from . import Image, ImageColor, ImageDraw, ImageFont, ImagePath

src/PIL/ImageFile.py

@@ -28,6 +28,8 @@
 #
 from __future__ import annotations
 
+__lazy_modules__ = {"PIL._util", "io", "itertools", "os", "struct"}
+
 import abc
 import io
 import itertools

src/PIL/ImageFilter.py

@@ -16,6 +16,8 @@
 #
 from __future__ import annotations
 
+__lazy_modules__ = {"collections.abc", "functools", "typing"}
+
 import abc
 import functools
 from collections.abc import Sequence

src/PIL/ImageFont.py

@@ -27,6 +27,8 @@
 
 from __future__ import annotations
 
+__lazy_modules__ = {"PIL._typing", "base64", "io", "os", "types", "warnings"}
+
 import abc
 import base64
 import os