Migrate type checker to ty

Much faster than mypy. Matches usage of ruff from same developer.

kittens/broadcast/main.py

@@ -51,8 +51,8 @@ class Broadcast(Handler):
         self.cmd.clear_to_end_of_screen()
         self.line_edit.write(self.write, screen_cols=self.screen_size.cols)
 
-    def on_resize(self, screen_size: ScreenSize) -> None:
-        super().on_resize(screen_size)
+    def on_resize(self, new_size: ScreenSize) -> None:
+        super().on_resize(new_size)
         self.commit_line()
 
     def on_text(self, text: str, in_bracketed_paste: bool = False) -> None:

kittens/hints/main.py

@@ -297,7 +297,7 @@ def linenum_handle_result(args: list[str], data: dict[str, Any], target_window_i
             def is_copy_action(s: str) -> bool:
                 return s in ('-', '@', '*') or s.startswith('@')
 
-            programs = list(filter(is_copy_action, data['programs'] or ()))
+            programs = list(filter(is_copy_action, data['programs'] or []))
             # keep for backward compatibility, previously option `--program` does not need to be specified to perform copy actions
             if is_copy_action(cmd[0]):
                 programs.append(cmd.pop(0))
@@ -412,7 +412,8 @@ def handle_result(args: list[str], data: dict[str, Any], target_window_id: int,
                         w = boss.window_id_map.get(target_window_id)
                         boss.call_remote_control(self_window=w, args=tuple(launch_args + ([m] if isinstance(m, str) else m)))
                     else:
-                        boss.open_url(m, program, cwd=cwd)
+                        if isinstance(m, str):
+                            boss.open_url(m, program, cwd=cwd)
 
 
 if __name__ == '__main__':

kittens/tui/handler.py

@@ -102,7 +102,7 @@ class KittenUI:
             raise ValueError('Remote control is not enabled, remember to use allow_remote_control=True')
         prefix = [kitten_exe(), '@']
         r = -1
-        pass_fds = list(kw.get('pass_fds') or ())
+        pass_fds = list(kw.get('pass_fds') or [])
         try:
             if self.rc_fd > -1:
                 pass_fds.append(self.rc_fd)
@@ -200,12 +200,13 @@ class Handler:
         self.debug.fobj = self
         self.initialize()
 
-    def __exit__(self, etype: type, value: Exception, tb: TracebackType) -> None:
+    def __exit__(self, exc_type: type[BaseException] | None, exc_val: BaseException | None, tb: TracebackType | None) -> bool | None:
         del self.debug.fobj
         with suppress(Exception):
             self.finalize()
             if self._image_manager is not None:
-                self._image_manager.__exit__(etype, value, tb)
+                self._image_manager.__exit__(exc_type, exc_val, tb)
+        return None
 
     def initialize(self) -> None:
         pass
@@ -213,8 +214,8 @@ class Handler:
     def finalize(self) -> None:
         pass
 
-    def on_resize(self, screen_size: ScreenSize) -> None:
-        self.screen_size = screen_size
+    def on_resize(self, new_size: ScreenSize) -> None:
+        self.screen_size = new_size
 
     def quit_loop(self, return_code: int | None = None) -> None:
         self._tui_loop.quit(return_code)

kittens/tui/images.py

@@ -10,7 +10,7 @@ from collections.abc import Callable, Iterator, Sequence
 from contextlib import suppress
 from enum import IntEnum
 from itertools import count
-from typing import Any, ClassVar, DefaultDict, Deque, Generic, Optional, TypeVar, Union, cast
+from typing import Any, ClassVar, DefaultDict, Deque, Generic, Optional, TypeVar, Union, cast, final
 
 from kitty.conf.utils import positive_float, positive_int
 from kitty.fast_data_types import create_canvas
@@ -343,6 +343,7 @@ class Alias(Generic[T]):
         self.name = Alias.currently_processing
 
 
+@final
 class GraphicsCommand:
     a = action = Alias('t')
     q = quiet = Alias(0)
@@ -467,12 +468,13 @@ class ImageManager:
         gc.t = 'f'
         self.handler.cmd.gr_command(gc, standard_b64encode(f.name.encode(fsenc)))
 
-    def __exit__(self, *a: Any) -> None:
+    def __exit__(self, *a: Any) -> bool | None:
         import shutil
         shutil.rmtree(self.tdir, ignore_errors=True)
         self.handler.cmd.clear_images_on_screen(delete_data=True)
         self.delete_all_sent_images()
         del self.handler
+        return None
 
     def delete_all_sent_images(self) -> None:
         gc = GraphicsCommand()

kittens/tui/path_completer.py

@@ -84,7 +84,7 @@ class PathCompleter:
         import readline
 
         from .dircolors import Dircolors
-        if 'libedit' in readline.__doc__:
+        if 'libedit' in getattr(readline, '__doc__', '') or '':
             readline.parse_and_bind("bind -e")
             readline.parse_and_bind("bind '\t' rl_complete")
         else: