Use lazy imports on Python 3.15 to improve startup speed

Author: hugovk

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

@@ -21,6 +21,8 @@
 #
 from __future__ import annotations
 
+__lazy_modules__ = {"PIL._binary", "io", "os", "subprocess", "tempfile", "typing"}
+
 import io
 import os
 import re