pep8

src/calibre/gui2/preferences/look_feel_tabs/tb_icon_rules.py

@@ -9,9 +9,24 @@ import copy
 import os
 from functools import partial
 
-from qt.core import (QAbstractItemView, QApplication, QComboBox, QDialog, QDialogButtonBox, QGridLayout,
-                QHBoxLayout, QIcon, QLabel, QLineEdit, QMenu, QSize, QStyledItemDelegate, Qt,
-                QTableWidgetItem, QToolButton)
+from qt.core import (
+    QAbstractItemView,
+    QApplication,
+    QComboBox,
+    QDialog,
+    QDialogButtonBox,
+    QGridLayout,
+    QHBoxLayout,
+    QIcon,
+    QLabel,
+    QLineEdit,
+    QMenu,
+    QSize,
+    QStyledItemDelegate,
+    Qt,
+    QTableWidgetItem,
+    QToolButton,
+)
 
 from calibre import sanitize_file_name
 from calibre.constants import config_dir