Enable Ruff pyupgrade (UP) rule

pyproject.toml

@@ -94,6 +94,7 @@ select = [
     "E9",  # pycodestyle: Runtime
     "F",   # pyflakes
     "I",   # isort
+    "UP",  # pyupgrade
 ]
 ignore = []
 

run_benchmarks.py

@@ -6,11 +6,11 @@
 import functools
 import os
 import timeit
-from collections.abc import Callable
+from collections.abc import Callable, Iterable
 from os import PathLike
 from pathlib import Path
 from tempfile import TemporaryFile as TempF
-from typing import Iterable, Union, cast
+from typing import cast
 
 import shapefile
 
@@ -51,14 +51,14 @@ def benchmark(
 shapeRecords = collections.defaultdict(list)
 
 
-def open_shapefile_with_PyShp(target: Union[str, PathLike]):
+def open_shapefile_with_PyShp(target: str | PathLike):
     with shapefile.Reader(target) as r:
         fields[target] = r.fields
         for shapeRecord in r.iterShapeRecords():
             shapeRecords[target].append(shapeRecord)
 
 
-def write_shapefile_with_PyShp(target: Union[str, PathLike]):
+def write_shapefile_with_PyShp(target: str | PathLike):
     with TempF("wb") as shp, TempF("wb") as dbf, TempF("wb") as shx:
         with shapefile.Writer(shp=shp, dbf=dbf, shx=shx) as w:  # type: ignore [arg-type]
             for field_info_tuple in fields[target]: