Adjust ignores/settings after mypy upgrade

See #7478, #7098

.mypy.ini

@@ -10,7 +10,6 @@ disallow_subclassing_any = True
 disallow_incomplete_defs = True
 check_untyped_defs = True
 disallow_untyped_decorators = True
-# no_implicit_optional = True
 warn_redundant_casts = True
 warn_unused_ignores = True
 # warn_return_any = True
@@ -27,6 +26,9 @@ show_error_codes = True
 show_error_context = True
 pretty = True
 
+### FIXME:qt6 get rid of this for v3
+no_implicit_optional = False
+
 [mypy-colorama]
 # https://github.com/tartley/colorama/issues/206
 ignore_missing_imports = True

qutebrowser/api/cmdutils.py

@@ -233,7 +233,7 @@ class argument:  # noqa: N801,N806 pylint: disable=invalid-name
                                                              self._argname))
         if not hasattr(func, 'qute_args'):
             func.qute_args = {}  # type: ignore[attr-defined]
-        elif func.qute_args is None:  # type: ignore[attr-defined]
+        elif func.qute_args is None:
             raise ValueError("@cmdutils.argument got called above (after) "
                              "@cmdutils.register for {}!".format(funcname))
 

qutebrowser/misc/checkpyver.py

@@ -49,7 +49,9 @@ def check_python_version():
         version_str = '.'.join(map(str, sys.version_info[:3]))
         text = ("At least Python 3.7 is required to run qutebrowser, but " +
                 "it's running with " + version_str + ".\n")
-        if Tk and '--no-err-windows' not in sys.argv:  # pragma: no cover
+
+        show_errors = '--no-err-windows' not in sys.argv
+        if Tk and show_errors:  # type: ignore[truthy-function]  # pragma: no cover
             root = Tk()
             root.withdraw()
             messagebox.showerror("qutebrowser: Fatal error!", text)

qutebrowser/utils/objreg.py

@@ -170,7 +170,7 @@ def _get_tab_registry(win_id: _WindowTab,
         window: Optional[QWidget] = QApplication.activeWindow()
         if window is None or not hasattr(window, 'win_id'):
             raise RegistryUnavailableError('tab')
-        win_id = window.win_id  # type: ignore[attr-defined]
+        win_id = window.win_id
     elif win_id is None:
         raise TypeError("window is None with scope tab!")
 

qutebrowser/utils/utils.py

@@ -55,7 +55,7 @@ try:
                       CSafeDumper as YamlDumper)
     YAML_C_EXT = True
 except ImportError:  # pragma: no cover
-    from yaml import (SafeLoader as YamlLoader,  # type: ignore[misc]
+    from yaml import (SafeLoader as YamlLoader,  # type: ignore[assignment]
                       SafeDumper as YamlDumper)
     YAML_C_EXT = False