lint: Fix flake8 docstring issues

qutebrowser/browser/webengine/certificateerror.py

@@ -70,6 +70,8 @@ class CertificateErrorWrapper(usertypes.AbstractCertificateErrorWrapper):
 
 class CertificateErrorWrapperQt5(CertificateErrorWrapper):
 
+    """QWebEngineCertificateError handling for Qt 5 API."""
+
     def _validate(self) -> None:
         assert machinery.IS_QT5
 
@@ -90,6 +92,8 @@ class CertificateErrorWrapperQt5(CertificateErrorWrapper):
 
 class CertificateErrorWrapperQt6(CertificateErrorWrapper):
 
+    """QWebEngineCertificateError handling for Qt 6 API."""
+
     def _validate(self) -> None:
         assert machinery.IS_QT6
 

qutebrowser/browser/webengine/webenginetab.py

@@ -1547,9 +1547,7 @@ class WebEngineTab(browsertab.AbstractTab):
 
     @pyqtSlot(int)
     def _on_load_progress(self, perc: int) -> None:
-        """QtWebEngine-specific loadProgress workarounds.
-
-        """
+        """QtWebEngine-specific loadProgress workarounds."""
         super()._on_load_progress(perc)
         if (
             self._needs_qtbug65223_workaround and

qutebrowser/misc/backendproblem.py

@@ -380,9 +380,11 @@ class _BackendProblemChecker:
             sys.exit(usertypes.Exit.err_init)
 
     def _check_software_rendering(self) -> None:
-        """WORKAROUND for https://bugreports.qt.io/browse/QTBUG-103372
+        """Avoid crashing software rendering settings.
 
+        WORKAROUND for https://bugreports.qt.io/browse/QTBUG-103372
         Hopefully fixed with Qt 6.3.1.
+
         FIXME:qt6 update
         """
         self._assert_backend(usertypes.Backend.QtWebEngine)

scripts/dev/rewrite_enums.py

@@ -1,3 +1,6 @@
+"""Rewrite PyQt enums based on rewrite_find_enums.py output."""
+
+
 import pathlib
 import sys
 import re

scripts/dev/rewrite_find_enums.py

@@ -1,3 +1,6 @@
+"""Find all PyQt enum instances."""
+
+
 import pathlib
 import ast
 

scripts/dev/rewrite_find_flags.py

@@ -1,3 +1,5 @@
+"""Find all PyQt flag instances."""
+
 import pathlib
 import ast