require python 3.10+

.github/workflows/main.yml

@@ -8,6 +8,6 @@ on:
 
 jobs:
   main:
-    uses: asottile/workflows/.github/workflows/tox.yml@v1.5.0
+    uses: asottile/workflows/.github/workflows/tox.yml@v1.6.1
     with:
-      env: '["py38", "py39", "py310"]'
+      env: '["py310", "py311", "py312"]'

.pre-commit-config.yaml

@@ -17,7 +17,7 @@ repos:
     rev: v3.13.0
     hooks:
     -   id: reorder-python-imports
-        args: [--py38-plus, --add-import, 'from __future__ import annotations']
+        args: [--py310-plus, --add-import, 'from __future__ import annotations']
 -   repo: https://github.com/asottile/add-trailing-comma
     rev: v3.1.0
     hooks:
@@ -26,7 +26,7 @@ repos:
     rev: v3.17.0
     hooks:
     -   id: pyupgrade
-        args: [--py38-plus]
+        args: [--py310-plus]
 -   repo: https://github.com/hhatto/autopep8
     rev: v2.3.1
     hooks:

babi/buf.py

@@ -3,9 +3,9 @@
 import bisect
 import contextlib
 import difflib
-from typing import Callable
-from typing import Generator
-from typing import Iterator
+from collections.abc import Callable
+from collections.abc import Generator
+from collections.abc import Iterator
 from typing import NamedTuple
 from typing import Protocol
 

babi/fdict.py

@@ -1,8 +1,8 @@
 from __future__ import annotations
 
+from collections.abc import Iterable
+from collections.abc import Mapping
 from typing import Generic
-from typing import Iterable
-from typing import Mapping
 from typing import Protocol
 from typing import TypeVar
 

babi/file.py

@@ -9,15 +9,15 @@
 import itertools
 import os.path
 import re
+from collections.abc import Callable
+from collections.abc import Generator
+from re import Match
+from re import Pattern
 from typing import Any
-from typing import Callable
 from typing import cast
-from typing import Generator
 from typing import IO
 from typing import Literal
-from typing import Match
 from typing import NamedTuple
-from typing import Pattern
 from typing import TYPE_CHECKING
 from typing import TypedDict
 from typing import TypeVar

babi/highlight.py

@@ -3,11 +3,10 @@
 import functools
 import json
 import os.path
+from re import Match
 from typing import Any
-from typing import Match
 from typing import NamedTuple
 from typing import Protocol
-from typing import Tuple
 from typing import TypeVar
 
 from identify.identify import tags_from_filename
@@ -22,9 +21,9 @@
 from babi.reg import make_regset
 
 T = TypeVar('T')
-Scope = Tuple[str, ...]
-Regions = Tuple['Region', ...]
-Captures = Tuple[Tuple[int, 'Rule'], ...]
+Scope = tuple[str, ...]
+Regions = tuple['Region', ...]
+Captures = tuple[tuple[int, 'Rule'], ...]
 
 
 def uniquely_constructed(t: T) -> T:
@@ -518,8 +517,8 @@ def search(
 
 class Compiler:
     def __init__(self, grammar: Grammar, grammars: Grammars) -> None:
-        self._include = functools.lru_cache(maxsize=None)(self._include_)
-        self._patterns = functools.lru_cache(maxsize=None)(self._patterns_)
+        self._include = functools.cache(self._include_)
+        self._patterns = functools.cache(self._patterns_)
 
         self.root_scope = grammar.scope_name
         self._grammars = grammars

babi/history.py

@@ -3,7 +3,7 @@
 import collections
 import contextlib
 import os.path
-from typing import Generator
+from collections.abc import Generator
 
 from babi.user_data import xdg_data
 

babi/hl/interface.py

@@ -2,7 +2,6 @@
 
 from typing import NamedTuple
 from typing import Protocol
-from typing import Tuple
 
 from babi.buf import Buf
 
@@ -13,7 +12,7 @@ class HL(NamedTuple):
     attr: int
 
 
-HLs = Tuple[HL, ...]
+HLs = tuple[HL, ...]
 
 
 class RegionsMapping(Protocol):

babi/hl/replace.py

@@ -3,7 +3,7 @@
 import collections
 import contextlib
 import curses
-from typing import Generator
+from collections.abc import Generator
 
 from babi.buf import Buf
 from babi.hl.interface import HL

babi/hl/syntax.py

@@ -3,7 +3,7 @@
 import curses
 import functools
 import math
-from typing import Callable
+from collections.abc import Callable
 from typing import NamedTuple
 
 from babi.buf import Buf

babi/linters/pre_commit.py

@@ -4,11 +4,10 @@
 import os.path
 import re
 import subprocess
-from typing import Tuple
 
 from babi import linting
 
-ErrorsByHook = Tuple[Tuple[str, Tuple[linting.Error, ...]], ...]
+ErrorsByHook = tuple[tuple[str, tuple[linting.Error, ...]], ...]
 
 HOOK_ID_RE = re.compile('^- hook id: (.*)$')
 
@@ -44,7 +43,7 @@ def _push_current_hook_id() -> None:
 
 class PreCommit:
     def __init__(self) -> None:
-        self._root = functools.lru_cache(maxsize=None)(self._root_uncached)
+        self._root = functools.cache(self._root_uncached)
 
     def _root_uncached(self, filename: str) -> str:
         return subprocess.check_output(

babi/main.py

@@ -6,7 +6,7 @@
 import re
 import signal
 import sys
-from typing import Sequence
+from collections.abc import Sequence
 
 from babi.buf import Buf
 from babi.file import File

babi/perf.py

@@ -3,7 +3,7 @@
 import contextlib
 import cProfile
 import time
-from typing import Generator
+from collections.abc import Generator
 
 
 class Perf:

babi/reg.py

@@ -2,7 +2,7 @@
 
 import functools
 import re
-from typing import Match
+from re import Match
 
 import onigurumacffi
 
@@ -78,6 +78,6 @@ def expand_escaped(match: Match[str], s: str) -> str:
     return _BACKREF_RE.sub(lambda m: f'{m[1]}{re.escape(match[int(m[2])])}', s)
 
 
-make_reg = functools.lru_cache(maxsize=None)(_Reg)
-make_regset = functools.lru_cache(maxsize=None)(_RegSet)
+make_reg = functools.cache(_Reg)
+make_regset = functools.cache(_RegSet)
 ERR_REG = make_reg('$ ^')

babi/screen.py

@@ -11,11 +11,11 @@
 import sre_parse
 import subprocess
 import sys
+from collections.abc import Callable
+from collections.abc import Generator
+from re import Pattern
 from types import FrameType
-from typing import Callable
-from typing import Generator
 from typing import NamedTuple
-from typing import Pattern
 
 from babi import linting
 from babi.color_manager import ColorManager
@@ -856,12 +856,9 @@ def sigusr1_handler(signum: int, frame: FrameType | None) -> None:
 
 def _init_screen() -> curses._CursesWindow:
     # set the escape delay so curses does not pause waiting for sequences
-    if (
-            sys.version_info >= (3, 9) and
-            hasattr(curses, 'set_escdelay')
-    ):  # pragma: >=3.9 cover
+    if hasattr(curses, 'set_escdelay'):
         curses.set_escdelay(25)
-    else:  # pragma: <3.9 cover
+    else:  # pragma: no cover  # specific ncurses versions
         os.environ.setdefault('ESCDELAY', '25')
 
     stdscr = curses.initscr()

babi/textmate_demo.py

@@ -1,7 +1,7 @@
 from __future__ import annotations
 
 import argparse
-from typing import Sequence
+from collections.abc import Sequence
 
 from babi.highlight import Compiler
 from babi.highlight import Grammars

babi/theme.py

@@ -81,7 +81,7 @@ class Theme:
     def __init__(self, default: Style, rules: TrieNode) -> None:
         self.default = default
         self.rules = rules
-        self.select = functools.lru_cache(maxsize=None)(self._select)
+        self.select = functools.cache(self._select)
 
     def _select(self, scope: tuple[str, ...]) -> Style:
         if not scope:

setup.cfg

@@ -25,7 +25,7 @@ install_requires =
     identify
     onigurumacffi>=0.0.18
     windows-curses!=2.3.1;sys_platform=="win32"
-python_requires = >=3.8
+python_requires = >=3.10
 
 [options.packages.find]
 exclude =