From fd55c3159366bf2b779932ffa70a49aa3adba4a5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bern=C3=A1t=20G=C3=A1bor?= <gaborjbernat@gmail.com>
Date: Wed, 18 Feb 2026 21:28:20 -0800
Subject: [PATCH] Migrate type checking from mypy to ty

---
 pyproject.toml                    | 6 ++----
 src/sphinx_argparse_cli/_logic.py | 5 ++---
 tox.toml                          | 4 ++--
 3 files changed, 6 insertions(+), 9 deletions(-)

diff --git a/pyproject.toml b/pyproject.toml
index 8f47af9..845e4b7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -124,7 +124,5 @@ report.fail_under = 76
 html.show_contexts = true
 html.skip_covered = false
 
-[tool.mypy]
-python_version = "3.12"
-show_error_codes = true
-strict = true
+[tool.ty]
+environment.python-version = "3.14"
diff --git a/src/sphinx_argparse_cli/_logic.py b/src/sphinx_argparse_cli/_logic.py
index 9a3b433..8d94066 100644
--- a/src/sphinx_argparse_cli/_logic.py
+++ b/src/sphinx_argparse_cli/_logic.py
@@ -120,7 +120,7 @@ def parser(self) -> ArgumentParser:
                 except HookError as hooked:
                     self._parser = hooked.parser
                 finally:
-                    ArgumentParser.parse_known_args = original_parse_known_args  # type: ignore[method-assign]
+                    ArgumentParser.parse_known_args = original_parse_known_args
             else:
                 self._parser = parser_creator()
 
@@ -158,8 +158,7 @@ def _load_sub_parsers(
 
             # If this parser has a subparser, recurse into it
             if parser._subparsers:  # noqa: SLF001
-                sub_sub_parser: _SubParsersAction[ArgumentParser]
-                sub_sub_parser = parser._subparsers._group_actions[0]  # type: ignore[assignment]  # noqa: SLF001
+                sub_sub_parser: _SubParsersAction[ArgumentParser] = parser._subparsers._group_actions[0]  # type: ignore[assignment]  # noqa: SLF001
                 yield from self._load_sub_parsers(sub_sub_parser)
 
     def load_sub_parsers(self) -> Iterator[tuple[list[str], str, ArgumentParser]]:
diff --git a/tox.toml b/tox.toml
index 877d2c2..6224c50 100644
--- a/tox.toml
+++ b/tox.toml
@@ -53,8 +53,8 @@ commands = [
 
 [env.type]
 description = "run type check on code base"
-deps = [ "mypy==1.19", "types-docutils>=0.22.3.20251115" ]
-commands = [ [ "mypy", "src", "tests", { replace = "posargs", extend = true } ] ]
+deps = [ "ty>=0.0.17" ]
+commands = [ [ "ty", "check", "--output-format", "concise", "--error-on-warning", "." ] ]
 
 [env.dev]
 description = "generate a DEV environment"