Fix unused imports and other trivia

src/ocrmypdf/_exec/tesseract.py

@@ -13,7 +13,6 @@ from pathlib import Path
 from subprocess import PIPE, STDOUT, CalledProcessError, TimeoutExpired
 
 from packaging.version import Version
-from PIL import Image
 
 from ocrmypdf.exceptions import (
     MissingDependencyError,

src/ocrmypdf/_jobcontext.py

@@ -6,8 +6,6 @@
 from __future__ import annotations
 
 import os
-import shutil
-import sys
 from argparse import Namespace
 from collections.abc import Iterator
 from copy import copy

src/ocrmypdf/_pipelines/ocr.py

@@ -10,7 +10,6 @@ from __future__ import annotations
 import argparse
 import logging
 import logging.handlers
-import threading
 from collections.abc import Sequence
 from functools import partial
 from pathlib import Path

src/ocrmypdf/_pipelines/pdf_to_hocr.py

@@ -11,7 +11,6 @@ import argparse
 import logging
 import logging.handlers
 import shutil
-import threading
 from functools import partial
 
 import PIL

src/ocrmypdf/helpers.py

@@ -319,7 +319,7 @@ def remove_all_log_handlers(logger: logging.Logger) -> None:
 
 
 def pikepdf_enable_mmap() -> None:
-    """Enable pikepdf mmap."""
+    """Enable pikepdf memory mapping."""
     try:
         pikepdf._core.set_access_default_mmap(True)
         log.debug(

src/ocrmypdf/languages.py

@@ -12,6 +12,7 @@ from typing import NamedTuple
 
 
 class ISOCodeData(NamedTuple):
+    """Data for a single ISO 639 code."""
     alt: str
     alpha_2: str
     english: str
@@ -167,7 +168,8 @@ ISO_639_3 = {
     'chu': ISOCodeData(
         '',
         'cu',
-        'Church Slavic; Old Slavonic; Church Slavonic; Old Bulgarian; Old Church Slavonic',
+        ('Church Slavic; Old Slavonic; Church Slavonic;'
+         ' Old Bulgarian; Old Church Slavonic'),
         "slavon d'église; vieux slave; slavon liturgique; vieux bulgare",
     ),
     'chv': ISOCodeData('', 'cv', 'Chuvash', 'tchouvache'),

tests/test_tagged.py

@@ -3,8 +3,6 @@
 
 from __future__ import annotations
 
-import argparse
-
 import pytest
 
 import ocrmypdf