Typing adjustments

src/ocrmypdf/_pipeline.py

@@ -494,7 +494,7 @@ def preprocess_deskew(input_file: Path, page_context: PageContext):
         deskewed = im.rotate(
             deskew_angle_degrees,
             resample=BICUBIC,
-            fillcolor=ImageColor.getcolor('white', mode=im.mode),
+            fillcolor=ImageColor.getcolor('white', mode=im.mode),  # type: ignore
         )
         deskewed.save(output_file, dpi=dpi)
 

src/ocrmypdf/subprocess/_windows.py

@@ -20,7 +20,9 @@ from typing import Any, Callable, Iterable, Iterator, Set, Tuple, TypeVar
 try:
     import winreg
 except ModuleNotFoundError as _notfound_ex:
-    raise ModuleNotFoundError("This module is for Windows only") from _notfound_ex
+    from unittest import mock
+
+    winreg = mock.MagicMock()
 
 log = logging.getLogger(__name__)