[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

tests/test_filelock.py

@@ -11,7 +11,7 @@
 from pathlib import Path, PurePath
 from stat import S_IWGRP, S_IWOTH, S_IWUSR, filemode
 from types import TracebackType
-from typing import Callable, IO, Iterator, Tuple, Type, Union
+from typing import IO, Callable, Iterator, Tuple, Type, Union
 
 import pytest
 from _pytest.logging import LogCaptureFixture
@@ -500,6 +500,7 @@ def test_wrong_platform(tmp_path: Path) -> None:
 @pytest.mark.skipif(sys.platform == "win32", reason="Windows filesystems support flock")
 def test_flock_not_implemented_unix(tmp_path: Path) -> None:
     import fcntl
+
     def dummy_flock(fd: IO[str], operation: str) -> None:
         raise OSError(ENOSYS, "mock error")
         return fd, operation  # needed for strict type checker