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

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

Author: pre-commit-ci[bot]

mypy/binder.py

@@ -3,7 +3,7 @@
 from collections import defaultdict
 from collections.abc import Iterator
 from contextlib import contextmanager
-from typing import NamedTuple, Optional, Union
+from typing import NamedTuple
 from typing_extensions import TypeAlias as _TypeAlias
 
 from mypy.erasetype import remove_instance_last_known_values

mypy/cache.py

@@ -48,7 +48,7 @@
 from __future__ import annotations
 
 from collections.abc import Sequence
-from typing import Any, Final, Union
+from typing import Any, Final
 from typing_extensions import TypeAlias as _TypeAlias
 
 from librt.internal import (

mypy/checker.py

@@ -12,9 +12,7 @@
     Generic,
     Literal,
     NamedTuple,
-    Optional,
     TypeVar,
-    Union,
     cast,
     overload,
 )

mypy/checkexpr.py

@@ -8,7 +8,7 @@
 from collections import defaultdict
 from collections.abc import Iterable, Iterator, Sequence
 from contextlib import contextmanager, nullcontext
-from typing import Callable, ClassVar, Final, Optional, cast, overload
+from typing import Callable, ClassVar, Final, cast, overload
 from typing_extensions import TypeAlias as _TypeAlias, assert_never
 
 import mypy.checker

mypy/checkstrformat.py

@@ -14,7 +14,7 @@
 
 import re
 from re import Match, Pattern
-from typing import Callable, Final, Union, cast
+from typing import Callable, Final, cast
 from typing_extensions import TypeAlias as _TypeAlias
 
 import mypy.errorcodes as codes

mypy/config_parser.py

@@ -14,13 +14,15 @@
     import tomli as tomllib
 
 from collections.abc import Mapping, MutableMapping, Sequence
-from typing import Any, Callable, Final, TextIO, Union
+from typing import Any, Callable, Final, TextIO
 from typing_extensions import Never, TypeAlias
 
 from mypy import defaults
 from mypy.options import PER_MODULE_OPTIONS, Options
 
-_CONFIG_VALUE_TYPES: TypeAlias = str | bool | int | float | dict[str, str] | list[str] | tuple[int, int]
+_CONFIG_VALUE_TYPES: TypeAlias = (
+    str | bool | int | float | dict[str, str] | list[str] | tuple[int, int]
+)
 _INI_PARSER_CALLABLE: TypeAlias = Callable[[Any], _CONFIG_VALUE_TYPES]
 
 

mypy/errors.py

@@ -6,7 +6,7 @@
 from collections import defaultdict
 from collections.abc import Iterable, Iterator
 from itertools import chain
-from typing import Callable, Final, NoReturn, Optional, TextIO, TypeVar
+from typing import Callable, Final, NoReturn, TextIO, TypeVar
 from typing_extensions import Literal, Self, TypeAlias as _TypeAlias
 
 from mypy import errorcodes as codes

mypy/exportjson.py

@@ -16,7 +16,7 @@
 import argparse
 import json
 import sys
-from typing import Any, Union
+from typing import Any
 from typing_extensions import TypeAlias as _TypeAlias
 
 from librt.internal import ReadBuffer

mypy/fastparse.py

@@ -4,7 +4,7 @@
 import sys
 import warnings
 from collections.abc import Sequence
-from typing import Any, Callable, Final, Literal, Optional, TypeVar, Union, cast, overload
+from typing import Any, Callable, Final, Literal, TypeVar, Union, cast, overload
 
 from mypy import defaults, errorcodes as codes, message_registry
 from mypy.errors import Errors
@@ -806,9 +806,7 @@ def _check_ifstmt_for_overloads(
         ):
             return None
 
-        overload_name = cast(
-            Decorator | FuncDef | OverloadedFuncDef, stmt.body[0].body[-1]
-        ).name
+        overload_name = cast(Decorator | FuncDef | OverloadedFuncDef, stmt.body[0].body[-1]).name
         if stmt.else_body is None:
             return overload_name
 

mypy/plugins/singledispatch.py

@@ -1,7 +1,7 @@
 from __future__ import annotations
 
 from collections.abc import Sequence
-from typing import NamedTuple, TypeVar, Union
+from typing import NamedTuple, TypeVar
 from typing_extensions import TypeAlias as _TypeAlias
 
 from mypy.messages import format_type