mypy: Fix new mypy issues

qutebrowser/misc/crashsignal.py

@@ -9,6 +9,7 @@ import os.path
 import sys
 import bdb
 import pdb  # noqa: T002
+import types
 import signal
 import argparse
 import functools
@@ -16,7 +17,7 @@ import threading
 import faulthandler
 import dataclasses
 from typing import TYPE_CHECKING, Optional, cast
-from collections.abc import MutableMapping
+from collections.abc import Callable, MutableMapping
 
 from qutebrowser.qt.core import (pyqtSlot, qInstallMessageHandler, QObject,
                           QSocketNotifier, QTimer, QUrl)
@@ -324,7 +325,9 @@ class SignalHandler(QObject):
         self._activated = False
         self._orig_wakeup_fd: Optional[int] = None
 
-        self._handlers = {
+        self._handlers: dict[
+            signal.Signals, Callable[[int, Optional[types.FrameType]], None]
+        ] = {
             signal.SIGINT: self.interrupt,
             signal.SIGTERM: self.interrupt,
         }
@@ -332,8 +335,10 @@ class SignalHandler(QObject):
             "SIGHUP": self.reload_config,
         }
         for sig_str, handler in platform_dependant_handlers.items():
-            if hasattr(signal.Signals, sig_str):
+            try:
                 self._handlers[signal.Signals[sig_str]] = handler
+            except KeyError:
+                pass
 
     def activate(self):
         """Set up signal handlers.

qutebrowser/utils/urlutils.py

@@ -11,18 +11,12 @@ import ipaddress
 import posixpath
 import urllib.parse
 import mimetypes
-from typing import Optional, Union, cast, TYPE_CHECKING
+from typing import Optional, Union, cast
 from collections.abc import Iterable
 
 from qutebrowser.qt import machinery
 from qutebrowser.qt.core import QUrl, QUrlQuery
 from qutebrowser.qt.network import QHostInfo, QHostAddress, QNetworkProxy
-# WORKAROUND for
-# https://www.riverbankcomputing.com/pipermail/pyqt/2024-December/046096.html
-if TYPE_CHECKING and machinery.IS_QT6:
-    from qutebrowser.qt.core import QChar
-else:
-    QChar = str
 
 from qutebrowser.api import cmdutils
 from qutebrowser.config import config
@@ -704,7 +698,7 @@ def get_url_yank_text(url: QUrl, *, pretty: bool) -> str:
     url_query = QUrlQuery()
     url_query_str = url.query()
     if '&' not in url_query_str and ';' in url_query_str:
-        url_query.setQueryDelimiters(cast(QChar, '='), cast(QChar, ';'))
+        url_query.setQueryDelimiters('=', ';')
     url_query.setQuery(url_query_str)
     for key in dict(url_query.queryItems()):
         if key in config.val.url.yank_ignored_parameters: