drop python 3.6 support

python 3.6 reached end of life on 2021-12-23

.pre-commit-config.yaml

@@ -28,12 +28,13 @@ repos:
     rev: v2.31.0
     hooks:
     -   id: pyupgrade
-        args: [--py36-plus]
+        args: [--py37-plus]
 -   repo: https://github.com/asottile/reorder_python_imports
     rev: v2.6.0
     hooks:
     -   id: reorder-python-imports
-        args: [--py3-plus]
+        args: [--py37-plus, --add-import, 'from __future__ import annotations']
+        exclude: ^testing/resources/python3_hooks_repo/
 -   repo: https://github.com/asottile/add-trailing-comma
     rev: v2.2.1
     hooks:

azure-pipelines.yml

@@ -50,7 +50,7 @@ jobs:
       displayName: install R
 - template: job--python-tox.yml@asottile
   parameters:
-    toxenvs: [pypy3, py36, py37, py38, py39]
+    toxenvs: [py37, py38, py39]
     os: linux
     pre_test:
     - task: UseRubyVersion@0

pre_commit/__main__.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from pre_commit.main import main
 
 

pre_commit/clientlib.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import argparse
 import functools
 import logging
@@ -5,8 +7,6 @@ import re
 import shlex
 import sys
 from typing import Any
-from typing import Dict
-from typing import Optional
 from typing import Sequence
 
 import cfgv
@@ -95,7 +95,7 @@ load_manifest = functools.partial(
 )
 
 
-def validate_manifest_main(argv: Optional[Sequence[str]] = None) -> int:
+def validate_manifest_main(argv: Sequence[str] | None = None) -> int:
     parser = _make_argparser('Manifest filenames.')
     args = parser.parse_args(argv)
 
@@ -116,7 +116,7 @@ META = 'meta'
 
 # should inherit from cfgv.Conditional if sha support is dropped
 class WarnMutableRev(cfgv.ConditionalOptional):
-    def check(self, dct: Dict[str, Any]) -> None:
+    def check(self, dct: dict[str, Any]) -> None:
         super().check(dct)
 
         if self.key in dct:
@@ -135,7 +135,7 @@ class WarnMutableRev(cfgv.ConditionalOptional):
 
 
 class OptionalSensibleRegexAtHook(cfgv.OptionalNoDefault):
-    def check(self, dct: Dict[str, Any]) -> None:
+    def check(self, dct: dict[str, Any]) -> None:
         super().check(dct)
 
         if '/*' in dct.get(self.key, ''):
@@ -154,7 +154,7 @@ class OptionalSensibleRegexAtHook(cfgv.OptionalNoDefault):
 
 
 class OptionalSensibleRegexAtTop(cfgv.OptionalNoDefault):
-    def check(self, dct: Dict[str, Any]) -> None:
+    def check(self, dct: dict[str, Any]) -> None:
         super().check(dct)
 
         if '/*' in dct.get(self.key, ''):
@@ -183,7 +183,7 @@ class MigrateShaToRev:
             ensure_absent=True,
         )
 
-    def check(self, dct: Dict[str, Any]) -> None:
+    def check(self, dct: dict[str, Any]) -> None:
         if dct.get('repo') in {LOCAL, META}:
             self._cond('rev').check(dct)
             self._cond('sha').check(dct)
@@ -194,7 +194,7 @@ class MigrateShaToRev:
         else:
             self._cond('rev').check(dct)
 
-    def apply_default(self, dct: Dict[str, Any]) -> None:
+    def apply_default(self, dct: dict[str, Any]) -> None:
         if 'sha' in dct:
             dct['rev'] = dct.pop('sha')
 
@@ -212,7 +212,7 @@ def _entry(modname: str) -> str:
 def warn_unknown_keys_root(
         extra: Sequence[str],
         orig_keys: Sequence[str],
-        dct: Dict[str, str],
+        dct: dict[str, str],
 ) -> None:
     logger.warning(f'Unexpected key(s) present at root: {", ".join(extra)}')
 
@@ -220,7 +220,7 @@ def warn_unknown_keys_root(
 def warn_unknown_keys_repo(
         extra: Sequence[str],
         orig_keys: Sequence[str],
-        dct: Dict[str, str],
+        dct: dict[str, str],
 ) -> None:
     logger.warning(
         f'Unexpected key(s) present on {dct["repo"]}: {", ".join(extra)}',
@@ -253,7 +253,7 @@ _meta = (
 
 
 class NotAllowed(cfgv.OptionalNoDefault):
-    def check(self, dct: Dict[str, Any]) -> None:
+    def check(self, dct: dict[str, Any]) -> None:
         if self.key in dct:
             raise cfgv.ValidationError(f'{self.key!r} cannot be overridden')
 
@@ -377,7 +377,7 @@ class InvalidConfigError(FatalError):
     pass
 
 
-def ordered_load_normalize_legacy_config(contents: str) -> Dict[str, Any]:
+def ordered_load_normalize_legacy_config(contents: str) -> dict[str, Any]:
     data = yaml_load(contents)
     if isinstance(data, list):
         logger.warning(
@@ -398,7 +398,7 @@ load_config = functools.partial(
 )
 
 
-def validate_config_main(argv: Optional[Sequence[str]] = None) -> int:
+def validate_config_main(argv: Sequence[str] | None = None) -> int:
     parser = _make_argparser('Config filenames.')
     args = parser.parse_args(argv)
 

pre_commit/color.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import argparse
 import os
 import sys

pre_commit/commands/autoupdate.py

@@ -1,12 +1,10 @@
+from __future__ import annotations
+
 import os.path
 import re
 from typing import Any
-from typing import Dict
-from typing import List
 from typing import NamedTuple
-from typing import Optional
 from typing import Sequence
-from typing import Tuple
 
 import pre_commit.constants as C
 from pre_commit import git
@@ -29,13 +27,13 @@ from pre_commit.util import yaml_load
 class RevInfo(NamedTuple):
     repo: str
     rev: str
-    frozen: Optional[str]
+    frozen: str | None
 
     @classmethod
-    def from_config(cls, config: Dict[str, Any]) -> 'RevInfo':
+    def from_config(cls, config: dict[str, Any]) -> RevInfo:
         return cls(config['repo'], config['rev'], None)
 
-    def update(self, tags_only: bool, freeze: bool) -> 'RevInfo':
+    def update(self, tags_only: bool, freeze: bool) -> RevInfo:
         git_cmd = ('git', *git.NO_FS_MONITOR)
 
         if tags_only:
@@ -76,7 +74,7 @@ class RepositoryCannotBeUpdatedError(RuntimeError):
 
 
 def _check_hooks_still_exist_at_rev(
-        repo_config: Dict[str, Any],
+        repo_config: dict[str, Any],
         info: RevInfo,
         store: Store,
 ) -> None:
@@ -101,9 +99,9 @@ REV_LINE_RE = re.compile(r'^(\s+)rev:(\s*)([\'"]?)([^\s#]+)(.*)(\r?\n)$')
 
 def _original_lines(
         path: str,
-        rev_infos: List[Optional[RevInfo]],
+        rev_infos: list[RevInfo | None],
         retry: bool = False,
-) -> Tuple[List[str], List[int]]:
+) -> tuple[list[str], list[int]]:
     """detect `rev:` lines or reformat the file"""
     with open(path, newline='') as f:
         original = f.read()
@@ -120,7 +118,7 @@ def _original_lines(
         return _original_lines(path, rev_infos, retry=True)
 
 
-def _write_new_config(path: str, rev_infos: List[Optional[RevInfo]]) -> None:
+def _write_new_config(path: str, rev_infos: list[RevInfo | None]) -> None:
     lines, idxs = _original_lines(path, rev_infos)
 
     for idx, rev_info in zip(idxs, rev_infos):
@@ -152,7 +150,7 @@ def autoupdate(
     """Auto-update the pre-commit config to the latest versions of repos."""
     migrate_config(config_file, quiet=True)
     retv = 0
-    rev_infos: List[Optional[RevInfo]] = []
+    rev_infos: list[RevInfo | None] = []
     changed = False
 
     config = load_config(config_file)

pre_commit/commands/clean.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import os.path
 
 from pre_commit import output

pre_commit/commands/gc.py

@@ -1,8 +1,7 @@
+from __future__ import annotations
+
 import os.path
 from typing import Any
-from typing import Dict
-from typing import Set
-from typing import Tuple
 
 import pre_commit.constants as C
 from pre_commit import output
@@ -17,9 +16,9 @@ from pre_commit.store import Store
 
 def _mark_used_repos(
         store: Store,
-        all_repos: Dict[Tuple[str, str], str],
-        unused_repos: Set[Tuple[str, str]],
-        repo: Dict[str, Any],
+        all_repos: dict[tuple[str, str], str],
+        unused_repos: set[tuple[str, str]],
+        repo: dict[str, Any],
 ) -> None:
     if repo['repo'] == META:
         return

pre_commit/commands/hook_impl.py

@@ -1,10 +1,10 @@
+from __future__ import annotations
+
 import argparse
 import os.path
 import subprocess
 import sys
-from typing import Optional
 from typing import Sequence
-from typing import Tuple
 
 from pre_commit.commands.run import run
 from pre_commit.envcontext import envcontext
@@ -18,7 +18,7 @@ def _run_legacy(
         hook_type: str,
         hook_dir: str,
         args: Sequence[str],
-) -> Tuple[int, bytes]:
+) -> tuple[int, bytes]:
     if os.environ.get('PRE_COMMIT_RUNNING_LEGACY'):
         raise SystemExit(
             f"bug: pre-commit's script is installed in migration mode\n"
@@ -69,16 +69,16 @@ def _ns(
         color: bool,
         *,
         all_files: bool = False,
-        remote_branch: Optional[str] = None,
-        local_branch: Optional[str] = None,
-        from_ref: Optional[str] = None,
-        to_ref: Optional[str] = None,
-        remote_name: Optional[str] = None,
-        remote_url: Optional[str] = None,
-        commit_msg_filename: Optional[str] = None,
-        checkout_type: Optional[str] = None,
-        is_squash_merge: Optional[str] = None,
-        rewrite_command: Optional[str] = None,
+        remote_branch: str | None = None,
+        local_branch: str | None = None,
+        from_ref: str | None = None,
+        to_ref: str | None = None,
+        remote_name: str | None = None,
+        remote_url: str | None = None,
+        commit_msg_filename: str | None = None,
+        checkout_type: str | None = None,
+        is_squash_merge: str | None = None,
+        rewrite_command: str | None = None,
 ) -> argparse.Namespace:
     return argparse.Namespace(
         color=color,
@@ -109,7 +109,7 @@ def _pre_push_ns(
         color: bool,
         args: Sequence[str],
         stdin: bytes,
-) -> Optional[argparse.Namespace]:
+) -> argparse.Namespace | None:
     remote_name = args[0]
     remote_url = args[1]
 
@@ -197,7 +197,7 @@ def _run_ns(
         color: bool,
         args: Sequence[str],
         stdin: bytes,
-) -> Optional[argparse.Namespace]:
+) -> argparse.Namespace | None:
     _check_args_length(hook_type, args)
     if hook_type == 'pre-push':
         return _pre_push_ns(color, args, stdin)

pre_commit/commands/init_templatedir.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import logging
 import os.path
 from typing import Sequence

pre_commit/commands/install_uninstall.py

@@ -1,11 +1,11 @@
+from __future__ import annotations
+
 import logging
 import os.path
 import shlex
 import shutil
 import sys
-from typing import Optional
 from typing import Sequence
-from typing import Tuple
 
 from pre_commit import git
 from pre_commit import output
@@ -34,8 +34,8 @@ TEMPLATE_END = '# end templated\n'
 
 def _hook_paths(
         hook_type: str,
-        git_dir: Optional[str] = None,
-) -> Tuple[str, str]:
+        git_dir: str | None = None,
+) -> tuple[str, str]:
     git_dir = git_dir if git_dir is not None else git.get_git_dir()
     pth = os.path.join(git_dir, 'hooks', hook_type)
     return pth, f'{pth}.legacy'
@@ -54,7 +54,7 @@ def _install_hook_script(
         hook_type: str,
         overwrite: bool = False,
         skip_on_missing_config: bool = False,
-        git_dir: Optional[str] = None,
+        git_dir: str | None = None,
 ) -> None:
     hook_path, legacy_path = _hook_paths(hook_type, git_dir=git_dir)
 
@@ -107,7 +107,7 @@ def install(
         overwrite: bool = False,
         hooks: bool = False,
         skip_on_missing_config: bool = False,
-        git_dir: Optional[str] = None,
+        git_dir: str | None = None,
 ) -> int:
     if git_dir is None and git.has_core_hookpaths_set():
         logger.error(

pre_commit/commands/migrate_config.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import re
 import textwrap
 

pre_commit/commands/run.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import argparse
 import contextlib
 import functools
@@ -9,12 +11,8 @@ import time
 import unicodedata
 from typing import Any
 from typing import Collection
-from typing import Dict
-from typing import List
 from typing import MutableMapping
 from typing import Sequence
-from typing import Set
-from typing import Tuple
 
 from identify.identify import tags_from_path
 
@@ -62,7 +60,7 @@ def filter_by_include_exclude(
         names: Collection[str],
         include: str,
         exclude: str,
-) -> List[str]:
+) -> list[str]:
     include_re, exclude_re = re.compile(include), re.compile(exclude)
     return [
         filename for filename in names
@@ -76,7 +74,7 @@ class Classifier:
         self.filenames = [f for f in filenames if os.path.lexists(f)]
 
     @functools.lru_cache(maxsize=None)
-    def _types_for_file(self, filename: str) -> Set[str]:
+    def _types_for_file(self, filename: str) -> set[str]:
         return tags_from_path(filename)
 
     def by_types(
@@ -85,7 +83,7 @@ class Classifier:
             types: Collection[str],
             types_or: Collection[str],
             exclude_types: Collection[str],
-    ) -> List[str]:
+    ) -> list[str]:
         types = frozenset(types)
         types_or = frozenset(types_or)
         exclude_types = frozenset(exclude_types)
@@ -100,7 +98,7 @@ class Classifier:
                 ret.append(filename)
         return ret
 
-    def filenames_for_hook(self, hook: Hook) -> Tuple[str, ...]:
+    def filenames_for_hook(self, hook: Hook) -> tuple[str, ...]:
         names = self.filenames
         names = filter_by_include_exclude(names, hook.files, hook.exclude)
         names = self.by_types(
@@ -117,7 +115,7 @@ class Classifier:
             filenames: Collection[str],
             include: str,
             exclude: str,
-    ) -> 'Classifier':
+    ) -> Classifier:
         # on windows we normalize all filenames to use forward slashes
         # this makes it easier to filter using the `files:` regex
         # this also makes improperly quoted shell-based hooks work better
@@ -128,7 +126,7 @@ class Classifier:
         return Classifier(filenames)
 
 
-def _get_skips(environ: MutableMapping[str, str]) -> Set[str]:
+def _get_skips(environ: MutableMapping[str, str]) -> set[str]:
     skips = environ.get('SKIP', '')
     return {skip.strip() for skip in skips.split(',') if skip.strip()}
 
@@ -144,12 +142,12 @@ def _subtle_line(s: str, use_color: bool) -> None:
 def _run_single_hook(
         classifier: Classifier,
         hook: Hook,
-        skips: Set[str],
+        skips: set[str],
         cols: int,
         diff_before: bytes,
         verbose: bool,
         use_color: bool,
-) -> Tuple[bool, bytes]:
+) -> tuple[bool, bytes]:
     filenames = classifier.filenames_for_hook(hook)
 
     if hook.id in skips or hook.alias in skips:
@@ -271,9 +269,9 @@ def _get_diff() -> bytes:
 
 
 def _run_hooks(
-        config: Dict[str, Any],
+        config: dict[str, Any],
         hooks: Sequence[Hook],
-        skips: Set[str],
+        skips: set[str],
         args: argparse.Namespace,
 ) -> int:
     """Actually run the hooks."""

pre_commit/commands/sample_config.py

@@ -2,6 +2,7 @@
 # determine the latest revision?  This adds ~200ms from my tests (and is
 # significantly faster than https:// or http://).  For now, periodically
 # manually updating the revision is fine.
+from __future__ import annotations
 SAMPLE_CONFIG = '''\
 # See https://pre-commit.com for more information
 # See https://pre-commit.com/hooks.html for more hooks

pre_commit/commands/try_repo.py

@@ -1,8 +1,8 @@
+from __future__ import annotations
+
 import argparse
 import logging
 import os.path
-from typing import Optional
-from typing import Tuple
 
 import pre_commit.constants as C
 from pre_commit import git
@@ -18,7 +18,7 @@ from pre_commit.xargs import xargs
 logger = logging.getLogger(__name__)
 
 
-def _repo_ref(tmpdir: str, repo: str, ref: Optional[str]) -> Tuple[str, str]:
+def _repo_ref(tmpdir: str, repo: str, ref: str | None) -> tuple[str, str]:
     # if `ref` is explicitly passed, use it
     if ref is not None:
         return repo, ref

pre_commit/constants.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import sys
 
 if sys.version_info >= (3, 8):  # pragma: >=3.8 cover

pre_commit/envcontext.py

@@ -1,10 +1,11 @@
+from __future__ import annotations
+
 import contextlib
 import enum
 import os
 from typing import Generator
 from typing import MutableMapping
 from typing import NamedTuple
-from typing import Optional
 from typing import Tuple
 from typing import Union
 
@@ -32,7 +33,7 @@ def format_env(parts: SubstitutionT, env: MutableMapping[str, str]) -> str:
 @contextlib.contextmanager
 def envcontext(
         patch: PatchesT,
-        _env: Optional[MutableMapping[str, str]] = None,
+        _env: MutableMapping[str, str] | None = None,
 ) -> Generator[None, None, None]:
     """In this context, `os.environ` is modified according to `patch`.
 

pre_commit/error_handler.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import contextlib
 import functools
 import os.path

pre_commit/errors.py

@@ -1,2 +1,5 @@
+from __future__ import annotations
+
+
 class FatalError(RuntimeError):
     pass

pre_commit/file_lock.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import contextlib
 import errno
 import sys
@@ -20,13 +22,11 @@ if sys.platform == 'win32':  # pragma: no cover (windows)
             blocked_cb: Callable[[], None],
     ) -> Generator[None, None, None]:
         try:
-            # TODO: https://github.com/python/typeshed/pull/3607
             msvcrt.locking(fileno, msvcrt.LK_NBLCK, _region)
         except OSError:
             blocked_cb()
             while True:
                 try:
-                    # TODO: https://github.com/python/typeshed/pull/3607
                     msvcrt.locking(fileno, msvcrt.LK_LOCK, _region)
                 except OSError as e:
                     # Locking violation. Returned when the _LK_LOCK or _LK_RLCK
@@ -45,7 +45,6 @@ if sys.platform == 'win32':  # pragma: no cover (windows)
             # The documentation however states:
             # "Regions should be locked only briefly and should be unlocked
             # before closing a file or exiting the program."
-            # TODO: https://github.com/python/typeshed/pull/3607
             msvcrt.locking(fileno, msvcrt.LK_UNLCK, _region)
 else:  # pragma: win32 no cover
     import fcntl

pre_commit/git.py

@@ -1,11 +1,9 @@
+from __future__ import annotations
+
 import logging
 import os.path
 import sys
-from typing import Dict
-from typing import List
 from typing import MutableMapping
-from typing import Optional
-from typing import Set
 
 from pre_commit.errors import FatalError
 from pre_commit.util import CalledProcessError
@@ -18,7 +16,7 @@ logger = logging.getLogger(__name__)
 NO_FS_MONITOR = ('-c', 'core.useBuiltinFSMonitor=false')
 
 
-def zsplit(s: str) -> List[str]:
+def zsplit(s: str) -> list[str]:
     s = s.strip('\0')
     if s:
         return s.split('\0')
@@ -27,8 +25,8 @@ def zsplit(s: str) -> List[str]:
 
 
 def no_git_env(
-        _env: Optional[MutableMapping[str, str]] = None,
-) -> Dict[str, str]:
+        _env: MutableMapping[str, str] | None = None,
+) -> dict[str, str]:
     # Too many bugs dealing with environment variables and GIT:
     # https://github.com/pre-commit/pre-commit/issues/300
     # In git 2.6.3 (maybe others), git exports GIT_WORK_TREE while running
@@ -95,7 +93,7 @@ def is_in_merge_conflict() -> bool:
     )
 
 
-def parse_merge_msg_for_conflicts(merge_msg: bytes) -> List[str]:
+def parse_merge_msg_for_conflicts(merge_msg: bytes) -> list[str]:
     # Conflicted files start with tabs
     return [
         line.lstrip(b'#').strip().decode()
@@ -105,7 +103,7 @@ def parse_merge_msg_for_conflicts(merge_msg: bytes) -> List[str]:
     ]
 
 
-def get_conflicted_files() -> Set[str]:
+def get_conflicted_files() -> set[str]:
     logger.info('Checking merge-conflict files only.')
     # Need to get the conflicted files from the MERGE_MSG because they could
     # have resolved the conflict by choosing one side or the other
@@ -126,7 +124,7 @@ def get_conflicted_files() -> Set[str]:
     return set(merge_conflict_filenames) | set(merge_diff_filenames)
 
 
-def get_staged_files(cwd: Optional[str] = None) -> List[str]:
+def get_staged_files(cwd: str | None = None) -> list[str]:
     return zsplit(
         cmd_output(
             'git', 'diff', '--staged', '--name-only', '--no-ext-diff', '-z',
@@ -137,7 +135,7 @@ def get_staged_files(cwd: Optional[str] = None) -> List[str]:
     )
 
 
-def intent_to_add_files() -> List[str]:
+def intent_to_add_files() -> list[str]:
     _, stdout, _ = cmd_output(
         'git', 'status', '--ignore-submodules', '--porcelain', '-z',
     )
@@ -153,11 +151,11 @@ def intent_to_add_files() -> List[str]:
     return intent_to_add
 
 
-def get_all_files() -> List[str]:
+def get_all_files() -> list[str]:
     return zsplit(cmd_output('git', 'ls-files', '-z')[1])
 
 
-def get_changed_files(old: str, new: str) -> List[str]:
+def get_changed_files(old: str, new: str) -> list[str]:
     diff_cmd = ('git', 'diff', '--name-only', '--no-ext-diff', '-z')
     try:
         _, out, _ = cmd_output(*diff_cmd, f'{old}...{new}')

pre_commit/hook.py

@@ -1,10 +1,10 @@
+from __future__ import annotations
+
 import logging
 import shlex
 from typing import Any
-from typing import Dict
 from typing import NamedTuple
 from typing import Sequence
-from typing import Tuple
 
 from pre_commit.prefix import Prefix
 
@@ -38,11 +38,11 @@ class Hook(NamedTuple):
     verbose: bool
 
     @property
-    def cmd(self) -> Tuple[str, ...]:
+    def cmd(self) -> tuple[str, ...]:
         return (*shlex.split(self.entry), *self.args)
 
     @property
-    def install_key(self) -> Tuple[Prefix, str, str, Tuple[str, ...]]:
+    def install_key(self) -> tuple[Prefix, str, str, tuple[str, ...]]:
         return (
             self.prefix,
             self.language,
@@ -51,7 +51,7 @@ class Hook(NamedTuple):
         )
 
     @classmethod
-    def create(cls, src: str, prefix: Prefix, dct: Dict[str, Any]) -> 'Hook':
+    def create(cls, src: str, prefix: Prefix, dct: dict[str, Any]) -> Hook:
         # TODO: have cfgv do this (?)
         extra_keys = set(dct) - _KEYS
         if extra_keys:

pre_commit/languages/all.py

@@ -1,8 +1,8 @@
+from __future__ import annotations
+
 from typing import Callable
 from typing import NamedTuple
-from typing import Optional
 from typing import Sequence
-from typing import Tuple
 
 from pre_commit.hook import Hook
 from pre_commit.languages import conda
@@ -30,7 +30,7 @@ from pre_commit.prefix import Prefix
 class Language(NamedTuple):
     name: str
     # Use `None` for no installation / environment
-    ENVIRONMENT_DIR: Optional[str]
+    ENVIRONMENT_DIR: str | None
     # return a value to replace `'default` for `language_version`
     get_default_version: Callable[[], str]
     # return whether the environment is healthy (or should be rebuilt)
@@ -38,7 +38,7 @@ class Language(NamedTuple):
     # install a repository for the given language and language_version
     install_environment: Callable[[Prefix, str, Sequence[str]], None]
     # execute a hook and return the exit code and output
-    run_hook: 'Callable[[Hook, Sequence[str], bool], Tuple[int, bytes]]'
+    run_hook: Callable[[Hook, Sequence[str], bool], tuple[int, bytes]]
 
 
 # TODO: back to modules + Protocol: https://github.com/python/mypy/issues/5018

pre_commit/languages/conda.py

@@ -1,8 +1,9 @@
+from __future__ import annotations
+
 import contextlib
 import os
 from typing import Generator
 from typing import Sequence
-from typing import Tuple
 
 from pre_commit.envcontext import envcontext
 from pre_commit.envcontext import PatchesT
@@ -86,7 +87,7 @@ def run_hook(
         hook: Hook,
         file_args: Sequence[str],
         color: bool,
-) -> Tuple[int, bytes]:
+) -> tuple[int, bytes]:
     # TODO: Some rare commands need to be run using `conda run` but mostly we
     #       can run them without which is much quicker and produces a better
     #       output.

pre_commit/languages/coursier.py

@@ -1,8 +1,9 @@
+from __future__ import annotations
+
 import contextlib
 import os
 from typing import Generator
 from typing import Sequence
-from typing import Tuple
 
 from pre_commit.envcontext import envcontext
 from pre_commit.envcontext import PatchesT
@@ -66,6 +67,6 @@ def run_hook(
         hook: Hook,
         file_args: Sequence[str],
         color: bool,
-) -> Tuple[int, bytes]:   # pragma: win32 no cover
+) -> tuple[int, bytes]:   # pragma: win32 no cover
     with in_env(hook.prefix):
         return helpers.run_xargs(hook, hook.cmd, file_args, color=color)

pre_commit/languages/dart.py

@@ -1,10 +1,11 @@
+from __future__ import annotations
+
 import contextlib
 import os.path
 import shutil
 import tempfile
 from typing import Generator
 from typing import Sequence
-from typing import Tuple
 
 import pre_commit.constants as C
 from pre_commit.envcontext import envcontext
@@ -76,7 +77,7 @@ def install_environment(
             with tempfile.TemporaryDirectory() as dep_tmp:
                 dep, _, version = dep_s.partition(':')
                 if version:
-                    dep_cmd: Tuple[str, ...] = (dep, '--version', version)
+                    dep_cmd: tuple[str, ...] = (dep, '--version', version)
                 else:
                     dep_cmd = (dep,)
 
@@ -104,6 +105,6 @@ def run_hook(
         hook: Hook,
         file_args: Sequence[str],
         color: bool,
-) -> Tuple[int, bytes]:
+) -> tuple[int, bytes]:
     with in_env(hook.prefix):
         return helpers.run_xargs(hook, hook.cmd, file_args, color=color)

pre_commit/languages/docker.py

@@ -1,8 +1,9 @@
+from __future__ import annotations
+
 import hashlib
 import json
 import os
 from typing import Sequence
-from typing import Tuple
 
 import pre_commit.constants as C
 from pre_commit.hook import Hook
@@ -76,7 +77,7 @@ def build_docker_image(
         *,
         pull: bool,
 ) -> None:  # pragma: win32 no cover
-    cmd: Tuple[str, ...] = (
+    cmd: tuple[str, ...] = (
         'docker', 'build',
         '--tag', docker_tag(prefix),
         '--label', PRE_COMMIT_LABEL,
@@ -105,14 +106,14 @@ def install_environment(
         os.mkdir(directory)
 
 
-def get_docker_user() -> Tuple[str, ...]:  # pragma: win32 no cover
+def get_docker_user() -> tuple[str, ...]:  # pragma: win32 no cover
     try:
         return ('-u', f'{os.getuid()}:{os.getgid()}')
     except AttributeError:
         return ()
 
 
-def docker_cmd() -> Tuple[str, ...]:  # pragma: win32 no cover
+def docker_cmd() -> tuple[str, ...]:  # pragma: win32 no cover
     return (
         'docker', 'run',
         '--rm',
@@ -129,7 +130,7 @@ def run_hook(
         hook: Hook,
         file_args: Sequence[str],
         color: bool,
-) -> Tuple[int, bytes]:  # pragma: win32 no cover
+) -> tuple[int, bytes]:  # pragma: win32 no cover
     # Rebuild the docker image in case it has gone missing, as many people do
     # automated cleanup of docker images.
     build_docker_image(hook.prefix, pull=False)

pre_commit/languages/docker_image.py

@@ -1,5 +1,6 @@
+from __future__ import annotations
+
 from typing import Sequence
-from typing import Tuple
 
 from pre_commit.hook import Hook
 from pre_commit.languages import helpers
@@ -15,6 +16,6 @@ def run_hook(
         hook: Hook,
         file_args: Sequence[str],
         color: bool,
-) -> Tuple[int, bytes]:  # pragma: win32 no cover
+) -> tuple[int, bytes]:  # pragma: win32 no cover
     cmd = docker_cmd() + hook.cmd
     return helpers.run_xargs(hook, cmd, file_args, color=color)

pre_commit/languages/dotnet.py

@@ -1,8 +1,9 @@
+from __future__ import annotations
+
 import contextlib
 import os.path
 from typing import Generator
 from typing import Sequence
-from typing import Tuple
 
 import pre_commit.constants as C
 from pre_commit.envcontext import envcontext
@@ -84,6 +85,6 @@ def run_hook(
         hook: Hook,
         file_args: Sequence[str],
         color: bool,
-) -> Tuple[int, bytes]:
+) -> tuple[int, bytes]:
     with in_env(hook.prefix):
         return helpers.run_xargs(hook, hook.cmd, file_args, color=color)

pre_commit/languages/fail.py

@@ -1,5 +1,6 @@
+from __future__ import annotations
+
 from typing import Sequence
-from typing import Tuple
 
 from pre_commit.hook import Hook
 from pre_commit.languages import helpers
@@ -14,7 +15,7 @@ def run_hook(
         hook: Hook,
         file_args: Sequence[str],
         color: bool,
-) -> Tuple[int, bytes]:
+) -> tuple[int, bytes]:
     out = f'{hook.entry}\n\n'.encode()
     out += b'\n'.join(f.encode() for f in file_args) + b'\n'
     return 1, out

pre_commit/languages/golang.py

@@ -1,9 +1,10 @@
+from __future__ import annotations
+
 import contextlib
 import os.path
 import sys
 from typing import Generator
 from typing import Sequence
-from typing import Tuple
 
 import pre_commit.constants as C
 from pre_commit import git
@@ -95,6 +96,6 @@ def run_hook(
         hook: Hook,
         file_args: Sequence[str],
         color: bool,
-) -> Tuple[int, bytes]:
+) -> tuple[int, bytes]:
     with in_env(hook.prefix):
         return helpers.run_xargs(hook, hook.cmd, file_args, color=color)

pre_commit/languages/helpers.py

@@ -1,13 +1,12 @@
+from __future__ import annotations
+
 import multiprocessing
 import os
 import random
 import re
 from typing import Any
-from typing import List
-from typing import Optional
 from typing import overload
 from typing import Sequence
-from typing import Tuple
 from typing import TYPE_CHECKING
 
 import pre_commit.constants as C
@@ -32,7 +31,7 @@ def exe_exists(exe: str) -> bool:
 
     homedir = os.path.expanduser('~')
     try:
-        common: Optional[str] = os.path.commonpath((found, homedir))
+        common: str | None = os.path.commonpath((found, homedir))
     except ValueError:  # on windows, different drives raises ValueError
         common = None
 
@@ -48,7 +47,7 @@ def exe_exists(exe: str) -> bool:
     )
 
 
-def run_setup_cmd(prefix: Prefix, cmd: Tuple[str, ...], **kwargs: Any) -> None:
+def run_setup_cmd(prefix: Prefix, cmd: tuple[str, ...], **kwargs: Any) -> None:
     cmd_output_b(*cmd, cwd=prefix.prefix_dir, **kwargs)
 
 
@@ -58,7 +57,7 @@ def environment_dir(d: None, language_version: str) -> None: ...
 def environment_dir(d: str, language_version: str) -> str: ...
 
 
-def environment_dir(d: Optional[str], language_version: str) -> Optional[str]:
+def environment_dir(d: str | None, language_version: str) -> str | None:
     if d is None:
         return None
     else:
@@ -95,7 +94,7 @@ def no_install(
         prefix: Prefix,
         version: str,
         additional_dependencies: Sequence[str],
-) -> 'NoReturn':
+) -> NoReturn:
     raise AssertionError('This type is not installable')
 
 
@@ -113,7 +112,7 @@ def target_concurrency(hook: Hook) -> int:
                 return 1
 
 
-def _shuffled(seq: Sequence[str]) -> List[str]:
+def _shuffled(seq: Sequence[str]) -> list[str]:
     """Deterministically shuffle"""
     fixed_random = random.Random()
     fixed_random.seed(FIXED_RANDOM_SEED, version=1)
@@ -125,10 +124,10 @@ def _shuffled(seq: Sequence[str]) -> List[str]:
 
 def run_xargs(
         hook: Hook,
-        cmd: Tuple[str, ...],
+        cmd: tuple[str, ...],
         file_args: Sequence[str],
         **kwargs: Any,
-) -> Tuple[int, bytes]:
+) -> tuple[int, bytes]:
     # Shuffle the files so that they more evenly fill out the xargs partitions,
     # but do it deterministically in case a hook cares about ordering.
     file_args = _shuffled(file_args)

pre_commit/languages/lua.py

@@ -1,9 +1,10 @@
+from __future__ import annotations
+
 import contextlib
 import os
 import sys
 from typing import Generator
 from typing import Sequence
-from typing import Tuple
 
 import pre_commit.constants as C
 from pre_commit.envcontext import envcontext
@@ -85,6 +86,6 @@ def run_hook(
     hook: Hook,
     file_args: Sequence[str],
     color: bool,
-) -> Tuple[int, bytes]:  # pragma: win32 no cover
+) -> tuple[int, bytes]:  # pragma: win32 no cover
     with in_env(hook.prefix):
         return helpers.run_xargs(hook, hook.cmd, file_args, color=color)

pre_commit/languages/node.py

@@ -1,10 +1,11 @@
+from __future__ import annotations
+
 import contextlib
 import functools
 import os
 import sys
 from typing import Generator
 from typing import Sequence
-from typing import Tuple
 
 import pre_commit.constants as C
 from pre_commit.envcontext import envcontext
@@ -122,6 +123,6 @@ def run_hook(
         hook: Hook,
         file_args: Sequence[str],
         color: bool,
-) -> Tuple[int, bytes]:
+) -> tuple[int, bytes]:
     with in_env(hook.prefix, hook.language_version):
         return helpers.run_xargs(hook, hook.cmd, file_args, color=color)

pre_commit/languages/perl.py

@@ -1,9 +1,10 @@
+from __future__ import annotations
+
 import contextlib
 import os
 import shlex
 from typing import Generator
 from typing import Sequence
-from typing import Tuple
 
 from pre_commit.envcontext import envcontext
 from pre_commit.envcontext import PatchesT
@@ -62,6 +63,6 @@ def run_hook(
         hook: Hook,
         file_args: Sequence[str],
         color: bool,
-) -> Tuple[int, bytes]:
+) -> tuple[int, bytes]:
     with in_env(hook.prefix, hook.language_version):
         return helpers.run_xargs(hook, hook.cmd, file_args, color=color)

pre_commit/languages/pygrep.py

@@ -1,11 +1,11 @@
+from __future__ import annotations
+
 import argparse
 import re
 import sys
 from typing import NamedTuple
-from typing import Optional
 from typing import Pattern
 from typing import Sequence
-from typing import Tuple
 
 from pre_commit import output
 from pre_commit.hook import Hook
@@ -90,12 +90,12 @@ def run_hook(
         hook: Hook,
         file_args: Sequence[str],
         color: bool,
-) -> Tuple[int, bytes]:
+) -> tuple[int, bytes]:
     exe = (sys.executable, '-m', __name__) + tuple(hook.args) + (hook.entry,)
     return xargs(exe, file_args, color=color)
 
 
-def main(argv: Optional[Sequence[str]] = None) -> int:
+def main(argv: Sequence[str] | None = None) -> int:
     parser = argparse.ArgumentParser(
         description=(
             'grep-like finder using python regexes.  Unlike grep, this tool '

pre_commit/languages/python.py

@@ -1,12 +1,11 @@
+from __future__ import annotations
+
 import contextlib
 import functools
 import os
 import sys
-from typing import Dict
 from typing import Generator
-from typing import Optional
 from typing import Sequence
-from typing import Tuple
 
 import pre_commit.constants as C
 from pre_commit.envcontext import envcontext
@@ -35,7 +34,7 @@ def _version_info(exe: str) -> str:
         return f'<<error retrieving version from {exe}>>'
 
 
-def _read_pyvenv_cfg(filename: str) -> Dict[str, str]:
+def _read_pyvenv_cfg(filename: str) -> dict[str, str]:
     ret = {}
     with open(filename, encoding='UTF-8') as f:
         for line in f:
@@ -65,7 +64,7 @@ def get_env_patch(venv: str) -> PatchesT:
 
 def _find_by_py_launcher(
         version: str,
-) -> Optional[str]:  # pragma: no cover (windows only)
+) -> str | None:  # pragma: no cover (windows only)
     if version.startswith('python'):
         num = version[len('python'):]
         cmd = ('py', f'-{num}', '-c', 'import sys; print(sys.executable)')
@@ -77,8 +76,8 @@ def _find_by_py_launcher(
     return None
 
 
-def _find_by_sys_executable() -> Optional[str]:
-    def _norm(path: str) -> Optional[str]:
+def _find_by_sys_executable() -> str | None:
+    def _norm(path: str) -> str | None:
         _, exe = os.path.split(path.lower())
         exe, _, _ = exe.partition('.exe')
         if exe not in {'python', 'pythonw'} and find_executable(exe):
@@ -133,7 +132,7 @@ def _sys_executable_matches(version: str) -> bool:
     return sys.version_info[:len(info)] == info
 
 
-def norm_version(version: str) -> Optional[str]:
+def norm_version(version: str) -> str | None:
     if version == C.DEFAULT:  # use virtualenv's default
         return None
     elif _sys_executable_matches(version):  # virtualenv defaults to our exe
@@ -209,6 +208,6 @@ def run_hook(
         hook: Hook,
         file_args: Sequence[str],
         color: bool,
-) -> Tuple[int, bytes]:
+) -> tuple[int, bytes]:
     with in_env(hook.prefix, hook.language_version):
         return helpers.run_xargs(hook, hook.cmd, file_args, color=color)

pre_commit/languages/r.py

@@ -1,10 +1,11 @@
+from __future__ import annotations
+
 import contextlib
 import os
 import shlex
 import shutil
 from typing import Generator
 from typing import Sequence
-from typing import Tuple
 
 from pre_commit.envcontext import envcontext
 from pre_commit.envcontext import PatchesT
@@ -80,7 +81,7 @@ def _entry_validate(entry: Sequence[str]) -> None:
         )
 
 
-def _cmd_from_hook(hook: Hook) -> Tuple[str, ...]:
+def _cmd_from_hook(hook: Hook) -> tuple[str, ...]:
     entry = shlex.split(hook.entry)
     _entry_validate(entry)
 
@@ -148,7 +149,7 @@ def run_hook(
         hook: Hook,
         file_args: Sequence[str],
         color: bool,
-) -> Tuple[int, bytes]:
+) -> tuple[int, bytes]:
     with in_env(hook.prefix, hook.language_version):
         return helpers.run_xargs(
             hook, _cmd_from_hook(hook), file_args, color=color,

pre_commit/languages/ruby.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import contextlib
 import functools
 import os.path
@@ -5,7 +7,6 @@ import shutil
 import tarfile
 from typing import Generator
 from typing import Sequence
-from typing import Tuple
 
 import pre_commit.constants as C
 from pre_commit.envcontext import envcontext
@@ -146,6 +147,6 @@ def run_hook(
         hook: Hook,
         file_args: Sequence[str],
         color: bool,
-) -> Tuple[int, bytes]:
+) -> tuple[int, bytes]:
     with in_env(hook.prefix, hook.language_version):
         return helpers.run_xargs(hook, hook.cmd, file_args, color=color)

pre_commit/languages/rust.py

@@ -1,9 +1,9 @@
+from __future__ import annotations
+
 import contextlib
 import os.path
 from typing import Generator
 from typing import Sequence
-from typing import Set
-from typing import Tuple
 
 import toml
 
@@ -39,7 +39,7 @@ def in_env(prefix: Prefix) -> Generator[None, None, None]:
 
 def _add_dependencies(
         cargo_toml_path: str,
-        additional_dependencies: Set[str],
+        additional_dependencies: set[str],
 ) -> None:
     with open(cargo_toml_path, 'r+') as f:
         cargo_toml = toml.load(f)
@@ -81,7 +81,7 @@ def install_environment(
         _add_dependencies(prefix.path('Cargo.toml'), lib_deps)
 
     with clean_path_on_failure(directory):
-        packages_to_install: Set[Tuple[str, ...]] = {('--path', '.')}
+        packages_to_install: set[tuple[str, ...]] = {('--path', '.')}
         for cli_dep in cli_deps:
             cli_dep = cli_dep[len('cli:'):]
             package, _, version = cli_dep.partition(':')
@@ -101,6 +101,6 @@ def run_hook(
         hook: Hook,
         file_args: Sequence[str],
         color: bool,
-) -> Tuple[int, bytes]:
+) -> tuple[int, bytes]:
     with in_env(hook.prefix):
         return helpers.run_xargs(hook, hook.cmd, file_args, color=color)

pre_commit/languages/script.py

@@ -1,5 +1,6 @@
+from __future__ import annotations
+
 from typing import Sequence
-from typing import Tuple
 
 from pre_commit.hook import Hook
 from pre_commit.languages import helpers
@@ -14,6 +15,6 @@ def run_hook(
         hook: Hook,
         file_args: Sequence[str],
         color: bool,
-) -> Tuple[int, bytes]:
+) -> tuple[int, bytes]:
     cmd = (hook.prefix.path(hook.cmd[0]), *hook.cmd[1:])
     return helpers.run_xargs(hook, cmd, file_args, color=color)

pre_commit/languages/swift.py

@@ -1,8 +1,9 @@
+from __future__ import annotations
+
 import contextlib
 import os
 from typing import Generator
 from typing import Sequence
-from typing import Tuple
 
 import pre_commit.constants as C
 from pre_commit.envcontext import envcontext
@@ -59,6 +60,6 @@ def run_hook(
         hook: Hook,
         file_args: Sequence[str],
         color: bool,
-) -> Tuple[int, bytes]:  # pragma: win32 no cover
+) -> tuple[int, bytes]:  # pragma: win32 no cover
     with in_env(hook.prefix):
         return helpers.run_xargs(hook, hook.cmd, file_args, color=color)

pre_commit/languages/system.py

@@ -1,5 +1,6 @@
+from __future__ import annotations
+
 from typing import Sequence
-from typing import Tuple
 
 from pre_commit.hook import Hook
 from pre_commit.languages import helpers
@@ -15,5 +16,5 @@ def run_hook(
         hook: Hook,
         file_args: Sequence[str],
         color: bool,
-) -> Tuple[int, bytes]:
+) -> tuple[int, bytes]:
     return helpers.run_xargs(hook, hook.cmd, file_args, color=color)

pre_commit/logging_handler.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import contextlib
 import logging
 from typing import Generator

pre_commit/main.py

@@ -1,11 +1,11 @@
+from __future__ import annotations
+
 import argparse
 import logging
 import os
 import sys
 from typing import Any
-from typing import Optional
 from typing import Sequence
-from typing import Union
 
 import pre_commit.constants as C
 from pre_commit import git
@@ -55,8 +55,8 @@ class AppendReplaceDefault(argparse.Action):
             self,
             parser: argparse.ArgumentParser,
             namespace: argparse.Namespace,
-            values: Union[str, Sequence[str], None],
-            option_string: Optional[str] = None,
+            values: str | Sequence[str] | None,
+            option_string: str | None = None,
     ) -> None:
         if not self.appended:
             setattr(namespace, self.dest, [])
@@ -175,7 +175,7 @@ def _adjust_args_and_chdir(args: argparse.Namespace) -> None:
         args.repo = os.path.relpath(args.repo)
 
 
-def main(argv: Optional[Sequence[str]] = None) -> int:
+def main(argv: Sequence[str] | None = None) -> int:
     argv = argv if argv is not None else sys.argv[1:]
     parser = argparse.ArgumentParser(prog='pre-commit')
 

pre_commit/meta_hooks/check_hooks_apply.py

@@ -1,5 +1,6 @@
+from __future__ import annotations
+
 import argparse
-from typing import Optional
 from typing import Sequence
 
 import pre_commit.constants as C
@@ -27,7 +28,7 @@ def check_all_hooks_match_files(config_file: str) -> int:
     return retv
 
 
-def main(argv: Optional[Sequence[str]] = None) -> int:
+def main(argv: Sequence[str] | None = None) -> int:
     parser = argparse.ArgumentParser()
     parser.add_argument('filenames', nargs='*', default=[C.CONFIG_FILE])
     args = parser.parse_args(argv)

pre_commit/meta_hooks/check_useless_excludes.py

@@ -1,6 +1,7 @@
+from __future__ import annotations
+
 import argparse
 import re
-from typing import Optional
 from typing import Sequence
 
 from cfgv import apply_defaults
@@ -65,7 +66,7 @@ def check_useless_excludes(config_file: str) -> int:
     return retv
 
 
-def main(argv: Optional[Sequence[str]] = None) -> int:
+def main(argv: Sequence[str] | None = None) -> int:
     parser = argparse.ArgumentParser()
     parser.add_argument('filenames', nargs='*', default=[C.CONFIG_FILE])
     args = parser.parse_args(argv)

pre_commit/meta_hooks/identity.py

@@ -1,11 +1,12 @@
+from __future__ import annotations
+
 import sys
-from typing import Optional
 from typing import Sequence
 
 from pre_commit import output
 
 
-def main(argv: Optional[Sequence[str]] = None) -> int:
+def main(argv: Sequence[str] | None = None) -> int:
     argv = argv if argv is not None else sys.argv[1:]
     for arg in argv:
         output.write_line(arg)

pre_commit/output.py

@@ -1,8 +1,9 @@
+from __future__ import annotations
+
 import contextlib
 import sys
 from typing import Any
 from typing import IO
-from typing import Optional
 
 
 def write(s: str, stream: IO[bytes] = sys.stdout.buffer) -> None:
@@ -11,9 +12,9 @@ def write(s: str, stream: IO[bytes] = sys.stdout.buffer) -> None:
 
 
 def write_line_b(
-        s: Optional[bytes] = None,
+        s: bytes | None = None,
         stream: IO[bytes] = sys.stdout.buffer,
-        logfile_name: Optional[str] = None,
+        logfile_name: str | None = None,
 ) -> None:
     with contextlib.ExitStack() as exit_stack:
         output_streams = [stream]
@@ -28,5 +29,5 @@ def write_line_b(
             output_stream.flush()
 
 
-def write_line(s: Optional[str] = None, **kwargs: Any) -> None:
+def write_line(s: str | None = None, **kwargs: Any) -> None:
     write_line_b(s.encode() if s is not None else s, **kwargs)

pre_commit/parse_shebang.py

@@ -1,7 +1,7 @@
+from __future__ import annotations
+
 import os.path
 from typing import Mapping
-from typing import Optional
-from typing import Tuple
 from typing import TYPE_CHECKING
 
 from identify.identify import parse_shebang_from_file
@@ -11,11 +11,11 @@ if TYPE_CHECKING:
 
 
 class ExecutableNotFoundError(OSError):
-    def to_output(self) -> Tuple[int, bytes, None]:
+    def to_output(self) -> tuple[int, bytes, None]:
         return (1, self.args[0].encode(), None)
 
 
-def parse_filename(filename: str) -> Tuple[str, ...]:
+def parse_filename(filename: str) -> tuple[str, ...]:
     if not os.path.exists(filename):
         return ()
     else:
@@ -23,8 +23,8 @@ def parse_filename(filename: str) -> Tuple[str, ...]:
 
 
 def find_executable(
-        exe: str, _environ: Optional[Mapping[str, str]] = None,
-) -> Optional[str]:
+        exe: str, _environ: Mapping[str, str] | None = None,
+) -> str | None:
     exe = os.path.normpath(exe)
     if os.sep in exe:
         return exe
@@ -47,7 +47,7 @@ def find_executable(
 
 
 def normexe(orig: str) -> str:
-    def _error(msg: str) -> 'NoReturn':
+    def _error(msg: str) -> NoReturn:
         raise ExecutableNotFoundError(f'Executable `{orig}` {msg}')
 
     if os.sep not in orig and (not os.altsep or os.altsep not in orig):
@@ -65,7 +65,7 @@ def normexe(orig: str) -> str:
         return orig
 
 
-def normalize_cmd(cmd: Tuple[str, ...]) -> Tuple[str, ...]:
+def normalize_cmd(cmd: tuple[str, ...]) -> tuple[str, ...]:
     """Fixes for the following issues on windows
     - https://bugs.python.org/issue8557
     - windows does not parse shebangs

pre_commit/prefix.py

@@ -1,6 +1,7 @@
+from __future__ import annotations
+
 import os.path
 from typing import NamedTuple
-from typing import Tuple
 
 
 class Prefix(NamedTuple):
@@ -12,6 +13,6 @@ class Prefix(NamedTuple):
     def exists(self, *parts: str) -> bool:
         return os.path.exists(self.path(*parts))
 
-    def star(self, end: str) -> Tuple[str, ...]:
+    def star(self, end: str) -> tuple[str, ...]:
         paths = os.listdir(self.prefix_dir)
         return tuple(path for path in paths if path.endswith(end))

pre_commit/repository.py

@@ -1,13 +1,10 @@
+from __future__ import annotations
+
 import json
 import logging
 import os
 from typing import Any
-from typing import Dict
-from typing import List
-from typing import Optional
 from typing import Sequence
-from typing import Set
-from typing import Tuple
 
 import pre_commit.constants as C
 from pre_commit.clientlib import load_manifest
@@ -33,7 +30,7 @@ def _state_filename(prefix: Prefix, venv: str) -> str:
     return prefix.path(venv, f'.install_state_v{C.INSTALLED_STATE_VERSION}')
 
 
-def _read_state(prefix: Prefix, venv: str) -> Optional[object]:
+def _read_state(prefix: Prefix, venv: str) -> object | None:
     filename = _state_filename(prefix, venv)
     if not os.path.exists(filename):
         return None
@@ -93,9 +90,9 @@ def _hook_install(hook: Hook) -> None:
 
 
 def _hook(
-        *hook_dicts: Dict[str, Any],
-        root_config: Dict[str, Any],
-) -> Dict[str, Any]:
+        *hook_dicts: dict[str, Any],
+        root_config: dict[str, Any],
+) -> dict[str, Any]:
     ret, rest = dict(hook_dicts[0]), hook_dicts[1:]
     for dct in rest:
         ret.update(dct)
@@ -140,10 +137,10 @@ def _hook(
 
 
 def _non_cloned_repository_hooks(
-        repo_config: Dict[str, Any],
+        repo_config: dict[str, Any],
         store: Store,
-        root_config: Dict[str, Any],
-) -> Tuple[Hook, ...]:
+        root_config: dict[str, Any],
+) -> tuple[Hook, ...]:
     def _prefix(language_name: str, deps: Sequence[str]) -> Prefix:
         language = languages[language_name]
         # pygrep / script / system / docker_image do not have
@@ -164,10 +161,10 @@ def _non_cloned_repository_hooks(
 
 
 def _cloned_repository_hooks(
-        repo_config: Dict[str, Any],
+        repo_config: dict[str, Any],
         store: Store,
-        root_config: Dict[str, Any],
-) -> Tuple[Hook, ...]:
+        root_config: dict[str, Any],
+) -> tuple[Hook, ...]:
     repo, rev = repo_config['repo'], repo_config['rev']
     manifest_path = os.path.join(store.clone(repo, rev), C.MANIFEST_FILE)
     by_id = {hook['id']: hook for hook in load_manifest(manifest_path)}
@@ -196,10 +193,10 @@ def _cloned_repository_hooks(
 
 
 def _repository_hooks(
-        repo_config: Dict[str, Any],
+        repo_config: dict[str, Any],
         store: Store,
-        root_config: Dict[str, Any],
-) -> Tuple[Hook, ...]:
+        root_config: dict[str, Any],
+) -> tuple[Hook, ...]:
     if repo_config['repo'] in {LOCAL, META}:
         return _non_cloned_repository_hooks(repo_config, store, root_config)
     else:
@@ -207,8 +204,8 @@ def _repository_hooks(
 
 
 def install_hook_envs(hooks: Sequence[Hook], store: Store) -> None:
-    def _need_installed() -> List[Hook]:
-        seen: Set[Tuple[Prefix, str, str, Tuple[str, ...]]] = set()
+    def _need_installed() -> list[Hook]:
+        seen: set[tuple[Prefix, str, str, tuple[str, ...]]] = set()
         ret = []
         for hook in hooks:
             if hook.install_key not in seen and not _hook_installed(hook):
@@ -224,7 +221,7 @@ def install_hook_envs(hooks: Sequence[Hook], store: Store) -> None:
             _hook_install(hook)
 
 
-def all_hooks(root_config: Dict[str, Any], store: Store) -> Tuple[Hook, ...]:
+def all_hooks(root_config: dict[str, Any], store: Store) -> tuple[Hook, ...]:
     return tuple(
         hook
         for repo in root_config['repos']

pre_commit/resources/empty_template_setup.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from setuptools import setup
 
 

pre_commit/staged_files_only.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import contextlib
 import logging
 import os.path

pre_commit/store.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import contextlib
 import logging
 import os.path
@@ -5,10 +7,7 @@ import sqlite3
 import tempfile
 from typing import Callable
 from typing import Generator
-from typing import List
-from typing import Optional
 from typing import Sequence
-from typing import Tuple
 
 import pre_commit.constants as C
 from pre_commit import file_lock
@@ -40,7 +39,7 @@ def _get_default_directory() -> str:
 class Store:
     get_default_directory = staticmethod(_get_default_directory)
 
-    def __init__(self, directory: Optional[str] = None) -> None:
+    def __init__(self, directory: str | None = None) -> None:
         self.directory = directory or Store.get_default_directory()
         self.db_path = os.path.join(self.directory, 'db.db')
         self.readonly = (
@@ -92,7 +91,7 @@ class Store:
     @contextlib.contextmanager
     def connect(
             self,
-            db_path: Optional[str] = None,
+            db_path: str | None = None,
     ) -> Generator[sqlite3.Connection, None, None]:
         db_path = db_path or self.db_path
         # sqlite doesn't close its fd with its contextmanager >.<
@@ -119,7 +118,7 @@ class Store:
     ) -> str:
         repo = self.db_repo_name(repo, deps)
 
-        def _get_result() -> Optional[str]:
+        def _get_result() -> str | None:
             # Check if we already exist
             with self.connect() as db:
                 result = db.execute(
@@ -239,18 +238,18 @@ class Store:
             self._create_config_table(db)
             db.execute('INSERT OR IGNORE INTO configs VALUES (?)', (path,))
 
-    def select_all_configs(self) -> List[str]:
+    def select_all_configs(self) -> list[str]:
         with self.connect() as db:
             self._create_config_table(db)
             rows = db.execute('SELECT path FROM configs').fetchall()
             return [path for path, in rows]
 
-    def delete_configs(self, configs: List[str]) -> None:
+    def delete_configs(self, configs: list[str]) -> None:
         with self.connect() as db:
             rows = [(path,) for path in configs]
             db.executemany('DELETE FROM configs WHERE path = ?', rows)
 
-    def select_all_repos(self) -> List[Tuple[str, str, str]]:
+    def select_all_repos(self) -> list[tuple[str, str, str]]:
         with self.connect() as db:
             return db.execute('SELECT repo, ref, path from repos').fetchall()
 

pre_commit/util.py

@@ -1,6 +1,9 @@
+from __future__ import annotations
+
 import contextlib
 import errno
 import functools
+import importlib.resources
 import os.path
 import shutil
 import stat
@@ -10,24 +13,13 @@ import tempfile
 from types import TracebackType
 from typing import Any
 from typing import Callable
-from typing import Dict
 from typing import Generator
 from typing import IO
-from typing import Optional
-from typing import Tuple
-from typing import Type
 
 import yaml
 
 from pre_commit import parse_shebang
 
-if sys.version_info >= (3, 7):  # pragma: >=3.7 cover
-    from importlib.resources import open_binary
-    from importlib.resources import read_text
-else:  # pragma: <3.7 cover
-    from importlib_resources import open_binary
-    from importlib_resources import read_text
-
 Loader = getattr(yaml, 'CSafeLoader', yaml.SafeLoader)
 yaml_load = functools.partial(yaml.load, Loader=Loader)
 Dumper = getattr(yaml, 'CSafeDumper', yaml.SafeDumper)
@@ -73,11 +65,11 @@ def tmpdir() -> Generator[str, None, None]:
 
 
 def resource_bytesio(filename: str) -> IO[bytes]:
-    return open_binary('pre_commit.resources', filename)
+    return importlib.resources.open_binary('pre_commit.resources', filename)
 
 
 def resource_text(filename: str) -> str:
-    return read_text('pre_commit.resources', filename)
+    return importlib.resources.read_text('pre_commit.resources', filename)
 
 
 def make_executable(filename: str) -> None:
@@ -90,10 +82,10 @@ class CalledProcessError(RuntimeError):
     def __init__(
             self,
             returncode: int,
-            cmd: Tuple[str, ...],
+            cmd: tuple[str, ...],
             expected_returncode: int,
             stdout: bytes,
-            stderr: Optional[bytes],
+            stderr: bytes | None,
     ) -> None:
         super().__init__(returncode, cmd, expected_returncode, stdout, stderr)
         self.returncode = returncode
@@ -103,7 +95,7 @@ class CalledProcessError(RuntimeError):
         self.stderr = stderr
 
     def __bytes__(self) -> bytes:
-        def _indent_or_none(part: Optional[bytes]) -> bytes:
+        def _indent_or_none(part: bytes | None) -> bytes:
             if part:
                 return b'\n    ' + part.replace(b'\n', b'\n    ')
             else:
@@ -121,20 +113,20 @@ class CalledProcessError(RuntimeError):
         return self.__bytes__().decode()
 
 
-def _setdefault_kwargs(kwargs: Dict[str, Any]) -> None:
+def _setdefault_kwargs(kwargs: dict[str, Any]) -> None:
     for arg in ('stdin', 'stdout', 'stderr'):
         kwargs.setdefault(arg, subprocess.PIPE)
 
 
-def _oserror_to_output(e: OSError) -> Tuple[int, bytes, None]:
+def _oserror_to_output(e: OSError) -> tuple[int, bytes, None]:
     return 1, force_bytes(e).rstrip(b'\n') + b'\n', None
 
 
 def cmd_output_b(
         *cmd: str,
-        retcode: Optional[int] = 0,
+        retcode: int | None = 0,
         **kwargs: Any,
-) -> Tuple[int, bytes, Optional[bytes]]:
+) -> tuple[int, bytes, bytes | None]:
     _setdefault_kwargs(kwargs)
 
     try:
@@ -156,7 +148,7 @@ def cmd_output_b(
     return returncode, stdout_b, stderr_b
 
 
-def cmd_output(*cmd: str, **kwargs: Any) -> Tuple[int, str, Optional[str]]:
+def cmd_output(*cmd: str, **kwargs: Any) -> tuple[int, str, str | None]:
     returncode, stdout_b, stderr_b = cmd_output_b(*cmd, **kwargs)
     stdout = stdout_b.decode() if stdout_b is not None else None
     stderr = stderr_b.decode() if stderr_b is not None else None
@@ -169,10 +161,10 @@ if os.name != 'nt':  # pragma: win32 no cover
 
     class Pty:
         def __init__(self) -> None:
-            self.r: Optional[int] = None
-            self.w: Optional[int] = None
+            self.r: int | None = None
+            self.w: int | None = None
 
-        def __enter__(self) -> 'Pty':
+        def __enter__(self) -> Pty:
             self.r, self.w = openpty()
 
             # tty flags normally change \n to \r\n
@@ -195,18 +187,18 @@ if os.name != 'nt':  # pragma: win32 no cover
 
         def __exit__(
                 self,
-                exc_type: Optional[Type[BaseException]],
-                exc_value: Optional[BaseException],
-                traceback: Optional[TracebackType],
+                exc_type: type[BaseException] | None,
+                exc_value: BaseException | None,
+                traceback: TracebackType | None,
         ) -> None:
             self.close_w()
             self.close_r()
 
     def cmd_output_p(
             *cmd: str,
-            retcode: Optional[int] = 0,
+            retcode: int | None = 0,
             **kwargs: Any,
-    ) -> Tuple[int, bytes, Optional[bytes]]:
+    ) -> tuple[int, bytes, bytes | None]:
         assert retcode is None
         assert kwargs['stderr'] == subprocess.STDOUT, kwargs['stderr']
         _setdefault_kwargs(kwargs)
@@ -250,7 +242,7 @@ def rmtree(path: str) -> None:
     def handle_remove_readonly(
             func: Callable[..., Any],
             path: str,
-            exc: Tuple[Type[OSError], OSError, TracebackType],
+            exc: tuple[type[OSError], OSError, TracebackType],
     ) -> None:
         excvalue = exc[1]
         if (
@@ -265,7 +257,7 @@ def rmtree(path: str) -> None:
     shutil.rmtree(path, ignore_errors=False, onerror=handle_remove_readonly)
 
 
-def parse_version(s: str) -> Tuple[int, ...]:
+def parse_version(s: str) -> tuple[int, ...]:
     """poor man's version comparison"""
     return tuple(int(p) for p in s.split('.'))
 

pre_commit/xargs.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import concurrent.futures
 import contextlib
 import math
@@ -8,11 +10,8 @@ from typing import Any
 from typing import Callable
 from typing import Generator
 from typing import Iterable
-from typing import List
 from typing import MutableMapping
-from typing import Optional
 from typing import Sequence
-from typing import Tuple
 from typing import TypeVar
 
 from pre_commit import parse_shebang
@@ -23,7 +22,7 @@ TArg = TypeVar('TArg')
 TRet = TypeVar('TRet')
 
 
-def _environ_size(_env: Optional[MutableMapping[str, str]] = None) -> int:
+def _environ_size(_env: MutableMapping[str, str] | None = None) -> int:
     environ = _env if _env is not None else getattr(os, 'environb', os.environ)
     size = 8 * len(environ)  # number of pointers in `envp`
     for k, v in environ.items():
@@ -62,8 +61,8 @@ def partition(
         cmd: Sequence[str],
         varargs: Sequence[str],
         target_concurrency: int,
-        _max_length: Optional[int] = None,
-) -> Tuple[Tuple[str, ...], ...]:
+        _max_length: int | None = None,
+) -> tuple[tuple[str, ...], ...]:
     _max_length = _max_length or _get_platform_max_length()
 
     # Generally, we try to partition evenly into at least `target_concurrency`
@@ -73,7 +72,7 @@ def partition(
     cmd = tuple(cmd)
     ret = []
 
-    ret_cmd: List[str] = []
+    ret_cmd: list[str] = []
     # Reversed so arguments are in order
     varargs = list(reversed(varargs))
 
@@ -115,14 +114,14 @@ def _thread_mapper(maxsize: int) -> Generator[
 
 
 def xargs(
-        cmd: Tuple[str, ...],
+        cmd: tuple[str, ...],
         varargs: Sequence[str],
         *,
         color: bool = False,
         target_concurrency: int = 1,
         _max_length: int = _get_platform_max_length(),
         **kwargs: Any,
-) -> Tuple[int, bytes]:
+) -> tuple[int, bytes]:
     """A simplified implementation of xargs.
 
     color: Make a pty if on a platform that supports it
@@ -152,8 +151,8 @@ def xargs(
     partitions = partition(cmd, varargs, target_concurrency, _max_length)
 
     def run_cmd_partition(
-            run_cmd: Tuple[str, ...],
-    ) -> Tuple[int, bytes, Optional[bytes]]:
+            run_cmd: tuple[str, ...],
+    ) -> tuple[int, bytes, bytes | None]:
         return cmd_fn(
             *run_cmd, retcode=None, stderr=subprocess.STDOUT, **kwargs,
         )

setup.cfg

@@ -13,7 +13,6 @@ classifiers =
     License :: OSI Approved :: MIT License
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3 :: Only
-    Programming Language :: Python :: 3.6
     Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
@@ -31,8 +30,7 @@ install_requires =
     toml
     virtualenv>=20.0.8
     importlib-metadata;python_version<"3.8"
-    importlib-resources<5.3;python_version<"3.7"
-python_requires = >=3.6.1
+python_requires = >=3.7
 
 [options.packages.find]
 exclude =

setup.py

@@ -1,2 +1,4 @@
+from __future__ import annotations
+
 from setuptools import setup
 setup()

testing/auto_namedtuple.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import collections
 
 

testing/fixtures.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import contextlib
 import os.path
 import shutil

testing/gen-languages-all

@@ -1,4 +1,6 @@
 #!/usr/bin/env python3
+from __future__ import annotations
+
 import sys
 
 LANGUAGES = [

testing/make-archives

@@ -1,4 +1,6 @@
 #!/usr/bin/env python3
+from __future__ import annotations
+
 import argparse
 import gzip
 import os.path
@@ -6,7 +8,6 @@ import shutil
 import subprocess
 import tarfile
 import tempfile
-from typing import Optional
 from typing import Sequence
 
 
@@ -69,7 +70,7 @@ def make_archive(name: str, repo: str, ref: str, destdir: str) -> str:
     return output_path
 
 
-def main(argv: Optional[Sequence[str]] = None) -> int:
+def main(argv: Sequence[str] | None = None) -> int:
     parser = argparse.ArgumentParser()
     parser.add_argument('--dest', default='pre_commit/resources')
     args = parser.parse_args(argv)

testing/resources/python_hooks_repo/foo.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import sys
 
 

testing/resources/python_hooks_repo/setup.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from setuptools import setup
 
 setup(

testing/resources/python_venv_hooks_repo/foo.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import sys
 
 

testing/resources/python_venv_hooks_repo/setup.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from setuptools import setup
 
 setup(

testing/util.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import contextlib
 import os.path
 import subprocess

testing/zipapp/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:bionic
+FROM ubuntu:focal
 RUN : \
     && apt-get update \
     && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
@@ -10,5 +10,5 @@ RUN : \
 
 ENV LANG=C.UTF-8 PATH=/venv/bin:$PATH
 RUN : \
-    && python3.6 -mvenv /venv \
+    && python3 -mvenv /venv \
     && pip install --no-cache-dir pip setuptools wheel no-manylinux --upgrade

testing/zipapp/entry

@@ -1,4 +1,6 @@
 #!/usr/bin/env python3
+from __future__ import annotations
+
 import os.path
 import shutil
 import stat
@@ -59,10 +61,7 @@ def main() -> int:
     if sys.platform == 'win32':  # https://bugs.python.org/issue19124
         import subprocess
 
-        if sys.version_info < (3, 7):  # https://bugs.python.org/issue25942
-            return subprocess.Popen(cmd).wait()
-        else:
-            return subprocess.call(cmd)
+        return subprocess.call(cmd)
     else:
         os.execvp(cmd[0], cmd)
 

testing/zipapp/make

@@ -1,4 +1,6 @@
 #!/usr/bin/env python3
+from __future__ import annotations
+
 import argparse
 import base64
 import hashlib

testing/zipapp/python

@@ -1,5 +1,7 @@
 #!/usr/bin/env python3
 """A shim executable to put dependencies on sys.path"""
+from __future__ import annotations
+
 import argparse
 import os.path
 import runpy
@@ -36,10 +38,7 @@ def main() -> int:
         if sys.platform == 'win32':  # https://bugs.python.org/issue19124
             import subprocess
 
-            if sys.version_info < (3, 7):  # https://bugs.python.org/issue25942
-                return subprocess.Popen(cmd).wait()
-            else:
-                return subprocess.call(cmd)
+            return subprocess.call(cmd)
         else:
             os.execvp(cmd[0], cmd)
 

tests/clientlib_test.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import logging
 import re
 

tests/color_test.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import sys
 from unittest import mock
 

tests/commands/autoupdate_test.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import shlex
 from unittest import mock
 

tests/commands/clean_test.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import os.path
 from unittest import mock
 

tests/commands/gc_test.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import os
 
 import pre_commit.constants as C

tests/commands/hook_impl_test.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import subprocess
 import sys
 from unittest import mock

tests/commands/init_templatedir_test.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import os.path
 from unittest import mock
 

tests/commands/install_uninstall_test.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import os.path
 import re
 

tests/commands/migrate_config_test.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import pre_commit.constants as C
 from pre_commit.commands.migrate_config import migrate_config
 

tests/commands/run_test.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import os.path
 import shlex
 import sys

tests/commands/sample_config_test.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from pre_commit.commands.sample_config import sample_config
 
 

tests/commands/try_repo_test.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import os.path
 import re
 import time

tests/conftest.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import functools
 import io
 import logging

tests/envcontext_test.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import os
 from unittest import mock
 

tests/error_handler_test.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import os.path
 import stat
 import sys

tests/git_test.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import os.path
 
 import pytest

tests/languages/conda_test.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import pytest
 
 from pre_commit import envcontext

tests/languages/docker_test.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import builtins
 import json
 import ntpath

tests/languages/golang_test.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import pytest
 
 from pre_commit.languages.golang import guess_go_dir

tests/languages/helpers_test.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import multiprocessing
 import os.path
 import sys

tests/languages/node_test.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import json
 import os
 import shutil

tests/languages/pygrep_test.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import pytest
 
 from pre_commit.languages import pygrep

tests/languages/python_test.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import os.path
 import sys
 from unittest import mock
@@ -47,16 +49,16 @@ def test_norm_version_of_default_is_sys_executable():
     assert python.norm_version('default') is None
 
 
-@pytest.mark.parametrize('v', ('python3.6', 'python3', 'python'))
+@pytest.mark.parametrize('v', ('python3.9', 'python3', 'python'))
 def test_sys_executable_matches(v):
-    with mock.patch.object(sys, 'version_info', (3, 6, 7)):
+    with mock.patch.object(sys, 'version_info', (3, 9, 10)):
         assert python._sys_executable_matches(v)
         assert python.norm_version(v) is None
 
 
 @pytest.mark.parametrize('v', ('notpython', 'python3.x'))
 def test_sys_executable_matches_does_not_match(v):
-    with mock.patch.object(sys, 'version_info', (3, 6, 7)):
+    with mock.patch.object(sys, 'version_info', (3, 9, 10)):
         assert not python._sys_executable_matches(v)
 
 
@@ -65,7 +67,7 @@ def test_sys_executable_matches_does_not_match(v):
         ('/usr/bin/python3', '/usr/bin/python3.7', 'python3'),
         ('/usr/bin/python', '/usr/bin/python3.7', 'python3.7'),
         ('/usr/bin/python', '/usr/bin/python', None),
-        ('/usr/bin/python3.6m', '/usr/bin/python3.6m', 'python3.6m'),
+        ('/usr/bin/python3.7m', '/usr/bin/python3.7m', 'python3.7m'),
         ('v/bin/python', 'v/bin/pypy', 'pypy'),
     ),
 )

tests/languages/r_test.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import os.path
 
 import pytest

tests/languages/ruby_test.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import os.path
 import tarfile
 from unittest import mock

tests/logging_handler_test.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import logging
 
 from pre_commit import color

tests/main_test.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import argparse
 import os.path
 from unittest import mock

tests/meta_hooks/check_hooks_apply_test.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from pre_commit.meta_hooks import check_hooks_apply
 from testing.fixtures import add_config_to_repo