Add more type annotations

kittens/diff/highlight.py

@@ -21,7 +21,7 @@ class StyleNotFound(Exception):
     pass
 
 
-class DiffFormatter(Formatter):
+class DiffFormatter(Formatter):  # type: ignore
 
     def __init__(self, style: str = 'default') -> None:
         try:

kittens/panel/main.py

@@ -5,11 +5,11 @@
 import shutil
 import subprocess
 import sys
-from typing import Callable, Dict, List, Tuple
+from typing import Any, Callable, Dict, List, Tuple
 
 from kitty.cli import parse_args
 from kitty.cli_stub import PanelCLIOptions
-from kitty.constants import is_macos, appname
+from kitty.constants import appname, is_macos
 from kitty.os_window_size import WindowSizeData
 
 OPTIONS = r'''
@@ -119,7 +119,7 @@ def setup_x11_window(win_id: int) -> None:
     func(win_id, window_width, window_height)
 
 
-def initial_window_size_func(opts: WindowSizeData, cached_values: Dict) -> Callable[[int, int, float, float, float, float], Tuple[int, int]]:
+def initial_window_size_func(opts: WindowSizeData, cached_values: Dict[str, Any]) -> Callable[[int, int, float, float, float, float], Tuple[int, int]]:
     from kitty.fast_data_types import glfw_primary_monitor_size
 
     def initial_window_size(cell_width: int, cell_height: int, dpi_x: float, dpi_y: float, xscale: float, yscale: float) -> Tuple[int, int]:
@@ -154,7 +154,7 @@ def main(sys_args: List[str]) -> None:
     for override in args.override:
         sys.argv.extend(('--override', override))
     sys.argv.extend(items)
-    from kitty.main import run_app, main as real_main
+    from kitty.main import main as real_main, run_app
     run_app.cached_values_name = 'panel'
     run_app.first_window_callback = setup_x11_window
     run_app.initial_window_size_func = initial_window_size_func

kittens/ssh/completion.py

@@ -295,7 +295,7 @@ def complete_q_choices(ans: Completions, prefix: str, title: str, key: str, comm
 def complete_arg(ans: Completions, option_flag: str, prefix: str = '') -> None:
     options = ssh_options()
     option_name = options.get(option_flag[1:])
-    if option_name.endswith('file') or option_name.endswith('path'):
+    if option_name and (option_name.endswith('file') or option_name.endswith('path')):
         return complete_files_and_dirs(ans, prefix, option_name)
     choices = {
         'mac_spec': ('MAC algorithm', 'mac', True),

kittens/transfer/receive.py

@@ -146,7 +146,7 @@ def on_file_transfer_response(self, ftc: FileTransmissionCommand) -> str:
                     self.failed_specs[fid] = ftc.status
                 else:
                     if ftc.status == 'OK':
-                        self.state == State.transferring
+                        self.state = State.transferring
                         return ''
                     else:
                         return ftc.status

kittens/transfer/utils.py

@@ -5,7 +5,7 @@
 from contextlib import contextmanager
 from datetime import timedelta
 from mimetypes import guess_type
-from typing import Callable, Generator, Union, cast
+from typing import Callable, Generator, Union
 
 from kitty.fast_data_types import truncate_point_for_length, wcswidth
 from kitty.types import run_once
@@ -154,8 +154,7 @@ def short_uuid_func() -> Callable[[], str]:
 
 
 def random_id() -> str:
-    f = short_uuid_func()
-    return cast(str, f())
+    return short_uuid_func()()
 
 
 @contextmanager

kitty/actions.py

@@ -2,17 +2,17 @@
 # License: GPLv3 Copyright: 2021, Kovid Goyal <kovid at kovidgoyal.net>
 
 import inspect
-from typing import Dict, List, NamedTuple
+from typing import Dict, List, NamedTuple, cast
 
 from .boss import Boss
 from .tabs import Tab
-from .types import run_once, ActionGroup, ActionSpec
+from .types import ActionGroup, ActionSpec, run_once
 from .window import Window
 
 
 class Action(NamedTuple):
     name: str
-    group: str
+    group: ActionGroup
     short_help: str
     long_help: str
 
@@ -32,10 +32,10 @@ class Action(NamedTuple):
 
 
 @run_once
-def get_all_actions() -> Dict[str, List[Action]]:
+def get_all_actions() -> Dict[ActionGroup, List[Action]]:
     ' test docstring '
 
-    ans: Dict[str, List[Action]] = {}
+    ans: Dict[ActionGroup, List[Action]] = {}
 
     def is_action(x: object) -> bool:
         return isinstance(getattr(x, 'action_spec', None), ActionSpec)
@@ -47,7 +47,8 @@ def as_action(x: object) -> Action:
         first = lines.pop(0)
         short_help = first
         long_help = '\n'.join(lines).strip()
-        return Action(getattr(x, '__name__'), spec.group, short_help, long_help)
+        assert spec.group in groups
+        return Action(getattr(x, '__name__'), cast(ActionGroup, spec.group), short_help, long_help)
 
     seen = set()
     for cls in (Window, Tab, Boss):
@@ -74,8 +75,8 @@ def dump() -> None:
 
 
 def as_rst() -> str:
-    from .options.definition import definition
     from .conf.types import Mapping
+    from .options.definition import definition
     allg = get_all_actions()
     lines: List[str] = []
     a = lines.append
@@ -85,7 +86,10 @@ def as_rst() -> str:
             func = m.action_def.split()[0]
             maps.setdefault(func, []).append(m)
 
-    for group in sorted(allg, key=lambda x: group_title(x).lower()):
+    def key(x: ActionGroup) -> str:
+        return group_title(x).lower()
+
+    for group in sorted(allg, key=key):
         title = group_title(group)
         a('')
         a(f'.. _action-group-{group}:')

kitty/complete.py

@@ -42,8 +42,8 @@
 them into something your shell will understand.
 '''
 
-parsers: Dict[str, Callable] = {}
-serializers: Dict[str, Callable] = {}
+parsers: Dict[str, 'ParserFunc'] = {}
+serializers: Dict[str, 'SerializerFunc'] = {}
 
 
 class MatchGroup:
@@ -469,7 +469,7 @@ def path_completion(prefix: str = '') -> Tuple[List[str], List[str]]:
     src = os.path.expandvars(os.path.expanduser(base))
     src_prefix = os.path.abspath(os.path.expandvars(os.path.expanduser(prefix))) if prefix else ''
     try:
-        items: Iterable[os.DirEntry] = os.scandir(src)
+        items: Iterable['os.DirEntry[str]'] = os.scandir(src)
     except FileNotFoundError:
         items = ()
     for x in items:

kitty/conf/types.py

@@ -25,12 +25,13 @@ def __bool__(self) -> bool:
 
 
 unset = Unset()
+ParserFuncType = Callable[[str], Any]
 
 
 def expand_opt_references(conf_name: str, text: str) -> str:
     conf_name += '.'
 
-    def expand(m: Match) -> str:
+    def expand(m: 'Match[str]') -> str:
         ref = m.group(1)
         if '<' not in ref and '.' not in ref:
             full_ref = conf_name + ref
@@ -50,7 +51,7 @@ def remove_markup(text: str) -> str:
         'shell_integration': website_url("shell-integration"),
     }
 
-    def sub(m: Match) -> str:
+    def sub(m: 'Match[str]') -> str:
         if m.group(1) == 'ref':
             return ref_map[m.group(2)]
         return str(m.group(2))
@@ -152,7 +153,7 @@ def action_group_for_action(self, ac: 'Mapping') -> List['Mapping']:
 class Option:
 
     def __init__(
-        self, name: str, defval: str, macos_default: Union[Unset, str], parser_func: Callable,
+        self, name: str, defval: str, macos_default: Union[Unset, str], parser_func: ParserFuncType,
         long_text: str, documented: bool, group: 'Group', choices: Tuple[str, ...], ctype: str
     ):
         self.name = name
@@ -224,7 +225,7 @@ def __init__(self, val_as_str: str, add_to_default: bool, documented: bool, only
 
 class MultiOption:
 
-    def __init__(self, name: str, parser_func: Callable, long_text: str, group: 'Group', ctype: str):
+    def __init__(self, name: str, parser_func: ParserFuncType, long_text: str, group: 'Group', ctype: str):
         self.name = name
         self.ctype = ctype
         self.parser_func = parser_func
@@ -513,7 +514,7 @@ def as_conf(self, commented: bool = False, level: int = 0) -> List[str]:
         return ans
 
 
-def resolve_import(name: str, module: Any = None) -> Callable:
+def resolve_import(name: str, module: Any = None) -> ParserFuncType:
     ans = None
     if name.count('.') > 1:
         m = import_module(name.rpartition('.')[0])
@@ -526,7 +527,7 @@ def resolve_import(name: str, module: Any = None) -> Callable:
                 ans = getattr(module, name)
     if not callable(ans):
         raise TypeError(f'{name} is not a function')
-    return cast(Callable, ans)
+    return cast(ParserFuncType, ans)
 
 
 class Action:
@@ -558,7 +559,7 @@ def __init__(self, package: str, *actions: Action, has_color_table: bool = False
         self.shortcut_map: Dict[str, List[ShortcutMapping]] = {}
         self.mouse_map: Dict[str, List[MouseMapping]] = {}
         self.actions = {a.name: a.resolve_imports(self.module_for_parsers) for a in actions}
-        self.deprecations: Dict[Callable, Tuple[str, ...]] = {}
+        self.deprecations: Dict[ParserFuncType, Tuple[str, ...]] = {}
 
     def iter_all_non_groups(self) -> Iterator[NonGroups]:
         yield from self.root_group.iter_all_non_groups()
@@ -575,17 +576,17 @@ def iter_all_maps(self, which: str = 'map') -> Iterator[Union[ShortcutMapping, M
             elif isinstance(x, MouseMapping) and which in ('mouse_map', '*'):
                 yield x
 
-    def parser_func(self, name: str) -> Callable:
+    def parser_func(self, name: str) -> ParserFuncType:
         ans = getattr(builtins, name, None)
         if callable(ans):
-            return cast(Callable, ans)
+            return cast(ParserFuncType, ans)
         ans = getattr(generic_parsers, name, None)
         if callable(ans):
-            return cast(Callable, ans)
+            return cast(ParserFuncType, ans)
         ans = getattr(self.module_for_parsers, name)
         if not callable(ans):
             raise TypeError(f'{name} is not a function')
-        return cast(Callable, ans)
+        return cast(ParserFuncType, ans)
 
     def add_group(self, name: str, title: str = '', start_text: str = '') -> None:
         self.current_group = Group(name, title or name, self.coalesced_iterator_data, start_text.strip(), self.current_group)

kitty/file_transmission.py

@@ -296,7 +296,7 @@ def serialize(self, prefix_with_osc_code: bool = False) -> str:
     @classmethod
     def deserialize(cls, data: Union[str, bytes, memoryview]) -> 'FileTransmissionCommand':
         ans = FileTransmissionCommand()
-        fmap: Dict[bytes, Field] = getattr(cls, 'fmap', None)
+        fmap: Dict[bytes, 'Field[Union[str, int, bytes, Enum]]'] = getattr(cls, 'fmap', None)
         if not fmap:
             fmap = {k.name.encode('ascii'): k for k in fields(cls)}
             setattr(cls, 'fmap', fmap)
@@ -936,7 +936,7 @@ class TestFileTransmission(FileTransmission):
 
     def __init__(self, allow: bool = True) -> None:
         super().__init__(0)
-        self.test_responses: List[dict] = []
+        self.test_responses: List[Dict[str, Union[str, int, bytes]]] = []
         self.allow = allow
 
     def write_ftc_to_child(self, payload: FileTransmissionCommand, appendleft: bool = False, use_pending: bool = True) -> bool:

kitty/main.py

@@ -6,7 +6,7 @@
 import shutil
 import sys
 from contextlib import contextmanager, suppress
-from typing import Dict, Generator, List, Optional, Sequence, Tuple
+from typing import Any, Dict, Generator, List, Optional, Sequence, Tuple
 
 from .borders import load_borders_program
 from .boss import Boss
@@ -103,7 +103,7 @@ def init_glfw(opts: Options, debug_keyboard: bool = False, debug_rendering: bool
     return glfw_module
 
 
-def get_macos_shortcut_for(opts: Options, function: str = 'new_os_window', args: Tuple = (), lookup_name: str = '') -> Optional[SingleKey]:
+def get_macos_shortcut_for(opts: Options, function: str = 'new_os_window', args: Tuple[Any, ...] = (), lookup_name: str = '') -> Optional[SingleKey]:
     ans = None
     candidates = []
     for k, v in opts.keymap.items():
@@ -187,7 +187,9 @@ def __call__(self, opts: Options, args: CLIOptions, bad_lines: Sequence[BadLine]
             set_options(None)
             free_font_data()  # must free font data before glfw/freetype/fontconfig/opengl etc are finalized
             if is_macos:
-                from kitty.fast_data_types import cocoa_set_notification_activated_callback
+                from kitty.fast_data_types import (
+                    cocoa_set_notification_activated_callback
+                )
                 cocoa_set_notification_activated_callback(None)
 
 

kitty/multiprocessing.py

@@ -42,7 +42,7 @@ def unmonkey_patch_multiprocessing() -> None:
 def get_process_pool_executor(
     prefer_fork: bool = False,
     max_workers: Optional[int] = None,
-    initializer: Optional[Callable] = None,
+    initializer: Optional[Callable[..., None]] = None,
     initargs: Tuple[Any, ...] = ()
 ) -> ProcessPoolExecutor:
     if prefer_fork and 'fork' in get_all_start_methods():

kitty/os_window_size.py

@@ -29,7 +29,7 @@ class WindowSizeData(NamedTuple):
     window_padding_width: FloatEdges
 
 
-def initial_window_size_func(opts: WindowSizeData, cached_values: Dict) -> Callable[[int, int, float, float, float, float], Tuple[int, int]]:
+def initial_window_size_func(opts: WindowSizeData, cached_values: Dict[str, Any]) -> Callable[[int, int, float, float, float, float], Tuple[int, int]]:
 
     if 'window-size' in cached_values and opts.remember_window_size:
         ws = cached_values['window-size']