pep8

recipes/atlantic.recipe

@@ -87,7 +87,7 @@ class TheAtlantic(BasicNewsRecipe):
 
     def preprocess_html(self, soup):
         for img in soup.findAll('img', attrs={'data-srcset': True}):
-            #img['src'] = img['data-srcset'].split()[0]
+            # img['src'] = img['data-srcset'].split()[0]
             data_srcset = img['data-srcset']
             if ',' in data_srcset:
                 img['src'] = data_srcset.split(',')[0]

recipes/atlantic_com.recipe

@@ -87,7 +87,7 @@ class TheAtlantic(BasicNewsRecipe):
 
     def preprocess_html(self, soup):
         for img in soup.findAll('img', attrs={'data-srcset': True}):
-            #img['src'] = img['data-srcset'].split()[0]
+            # img['src'] = img['data-srcset'].split()[0]
             data_srcset = img['data-srcset']
             if ',' in data_srcset:
                 img['src'] = data_srcset.split(',')[0]

src/calibre/gui2/complete2.py

@@ -344,7 +344,8 @@ class LineEdit(QLineEdit, LineEditECM):
         # See https://bugreports.qt.io/browse/QTBUG-46911
         try:
             if ev.type() == ev.ShortcutOverride and (
-                    ev.key() in (Qt.Key.Key_Left, Qt.Key.Key_Right) and (ev.modifiers() & ~Qt.KeyboardModifier.KeypadModifier) == Qt.KeyboardModifier.ControlModifier):
+                    ev.key() in (Qt.Key.Key_Left, Qt.Key.Key_Right) and (
+                        ev.modifiers() & ~Qt.KeyboardModifier.KeypadModifier) == Qt.KeyboardModifier.ControlModifier):
                 ev.accept()
         except AttributeError:
             pass

src/calibre/gui2/convert/regex_builder.py

@@ -113,7 +113,10 @@ class RegexBuilder(QDialog, Ui_RegexBuilder):
                 if pos > loc:
                     match_loc = i
                     break
-            self.goto_loc(self.match_locs[match_loc][1], operation=QTextCursor.MoveOperation.Left, n=self.match_locs[match_loc][1] - self.match_locs[match_loc][0])
+            self.goto_loc(
+                self.match_locs[match_loc][1],
+                operation=QTextCursor.MoveOperation.Left,
+                n=self.match_locs[match_loc][1] - self.match_locs[match_loc][0])
 
     def goto_next(self):
         pos = self.preview.textCursor().position()

src/calibre/gui2/convert/single.py

@@ -153,7 +153,9 @@ class Config(QDialog):
         self.gridLayout.addWidget(self.scrollArea, 1, 1, 1, 1)
         self.buttonBox = QDialogButtonBox(self)
         self.buttonBox.setOrientation(Qt.Orientation.Horizontal)
-        self.buttonBox.setStandardButtons(QDialogButtonBox.StandardButton.Cancel|QDialogButtonBox.StandardButton.Ok|QDialogButtonBox.StandardButton.RestoreDefaults)
+        self.buttonBox.setStandardButtons(
+            QDialogButtonBox.StandardButton.Cancel|QDialogButtonBox.StandardButton.Ok|
+            QDialogButtonBox.StandardButton.RestoreDefaults)
         self.buttonBox.setObjectName("buttonBox")
         self.gridLayout.addWidget(self.buttonBox, 3, 1, 1, 1)
         self.help = QTextEdit(self)

src/calibre/gui2/dbus_export/utils.py

@@ -112,7 +112,8 @@ def key_sequence_to_dbus_shortcut(qks):
         for mod, name in iteritems({Qt.Modifier.META:'Super', Qt.Modifier.CTRL:'Control', Qt.Modifier.ALT:'Alt', Qt.Modifier.SHIFT:'Shift'}):
             if key & mod == mod:
                 items.append(name)
-        key &= int(~(Qt.KeyboardModifier.ShiftModifier | Qt.KeyboardModifier.ControlModifier | Qt.KeyboardModifier.AltModifier | Qt.KeyboardModifier.MetaModifier | Qt.KeyboardModifier.KeypadModifier))
+        key &= int(~(Qt.KeyboardModifier.ShiftModifier | Qt.KeyboardModifier.ControlModifier |
+                     Qt.KeyboardModifier.AltModifier | Qt.KeyboardModifier.MetaModifier | Qt.KeyboardModifier.KeypadModifier))
         text = QKeySequence(key).toString()
         if text:
             text = {'+':'plus', '-':'minus'}.get(text, text)

src/calibre/gui2/dialogs/exim.py

@@ -211,7 +211,8 @@ class EximDialog(Dialog):
             i.setIcon(QIcon(I('lt.png')))
             i.setSelected(True)
         self.update_disk_usage.connect((
-            lambda i, sz: self.lib_list.item(i).setText(self.export_lib_text(self.lib_list.item(i).data(Qt.ItemDataRole.UserRole), sz))), type=Qt.ConnectionType.QueuedConnection)
+            lambda i, sz: self.lib_list.item(i).setText(self.export_lib_text(
+                self.lib_list.item(i).data(Qt.ItemDataRole.UserRole), sz))), type=Qt.ConnectionType.QueuedConnection)
 
     def get_lib_sizes(self):
         for i in range(self.lib_list.count()):

src/calibre/gui2/dialogs/trim_image.py

@@ -41,7 +41,8 @@ class TrimImage(QDialog):
         r.setShortcut(QKeySequence(QKeySequence.StandardKey.Redo))
         self.trim_action = ac = self.bar.addAction(QIcon(I('trim.png')), _('&Trim'), self.do_trim)
         ac.setShortcut(QKeySequence('Ctrl+T'))
-        ac.setToolTip('%s [%s]' % (_('Trim image by removing borders outside the selected region'), ac.shortcut().toString(QKeySequence.SequenceFormat.NativeText)))
+        ac.setToolTip('%s [%s]' % (_('Trim image by removing borders outside the selected region'),
+                                   ac.shortcut().toString(QKeySequence.SequenceFormat.NativeText)))
         ac.setEnabled(False)
         c.selection_state_changed.connect(self.selection_changed)
         l.addWidget(c)

src/calibre/gui2/gestures.py

@@ -154,7 +154,9 @@ class GestureManager(QObject):
         if touch_supported:
             view.viewport().setAttribute(Qt.WidgetAttribute.WA_AcceptTouchEvents)
         self.state = State()
-        self.state.tapped.connect(self.handle_tap, type=Qt.ConnectionType.QueuedConnection)  # has to be queued otherwise QApplication.keyboardModifiers() does not work
+        self.state.tapped.connect(
+            self.handle_tap,
+            type=Qt.ConnectionType.QueuedConnection)  # has to be queued otherwise QApplication.keyboardModifiers() does not work
         self.state.flicking.connect(self.handle_flicking)
         connect_lambda(self.state.tap_hold_started, self, lambda self, tp: self.handle_tap_hold('start', tp))
         connect_lambda(self.state.tap_hold_updated, self, lambda self, tp: self.handle_tap_hold('update', tp))

src/calibre/gui2/library/views.py

@@ -99,7 +99,8 @@ class HeaderView(QHeaderView):  # {{{
         style = self.style()
         margin = 2 * style.pixelMetric(style.PM_HeaderMargin, None, self)
         if self.isSortIndicatorShown() and self.sortIndicatorSection() == logical_index:
-            opt.sortIndicator = QStyleOptionHeader.SortIndicator.SortDown if self.sortIndicatorOrder() == Qt.SortOrder.AscendingOrder else QStyleOptionHeader.SortIndicator.SortUp
+            opt.sortIndicator = QStyleOptionHeader.SortIndicator.SortDown if \
+                self.sortIndicatorOrder() == Qt.SortOrder.AscendingOrder else QStyleOptionHeader.SortIndicator.SortUp
             margin += style.pixelMetric(style.PM_HeaderMarkSize, None, self)
         opt.text = unicode_type(model.headerData(logical_index, opt.orientation, Qt.ItemDataRole.DisplayRole) or '')
         if self.textElideMode() != Qt.TextElideMode.ElideNone:
@@ -472,7 +473,8 @@ class BooksView(QTableView):  # {{{
         ans.addSeparator()
         if hidden_cols:
             m = ans.addMenu(_('Show column'))
-            hcols = [(hcol, unicode_type(self.model().headerData(hidx, Qt.Orientation.Horizontal, Qt.ItemDataRole.DisplayRole) or '')) for hcol, hidx in iteritems(hidden_cols)]
+            hcols = [(hcol, unicode_type(self.model().headerData(hidx, Qt.Orientation.Horizontal, Qt.ItemDataRole.DisplayRole) or ''))
+                     for hcol, hidx in iteritems(hidden_cols)]
             hcols.sort(key=lambda x: primary_sort_key(x[1]))
             for hcol, hname in hcols:
                 m.addAction(hname, partial(handler, action='show', column=hcol))

src/calibre/gui2/metadata/pdf_covers.py

@@ -136,7 +136,9 @@ class PDFCovers(QDialog):
             dpr = self.devicePixelRatio()
 
         for i, f in enumerate(sorted(files)):
-            p = QPixmap(f).scaled(self.covers.iconSize()*dpr, aspectRatioMode=Qt.AspectRatioMode.IgnoreAspectRatio, transformMode=Qt.TransformationMode.SmoothTransformation)
+            p = QPixmap(f).scaled(
+                self.covers.iconSize()*dpr, aspectRatioMode=Qt.AspectRatioMode.IgnoreAspectRatio,
+                transformMode=Qt.TransformationMode.SmoothTransformation)
             p.setDevicePixelRatio(dpr)
             i = QListWidgetItem(_('page %d') % (self.first + i))
             i.setData(Qt.ItemDataRole.DecorationRole, p)

src/calibre/gui2/preferences/main.py

@@ -236,7 +236,10 @@ class Preferences(QDialog):
         self.l = l = QVBoxLayout(self)
 
         self.stack = QStackedWidget(self)
-        self.bb = QDialogButtonBox(QDialogButtonBox.StandardButton.Close | QDialogButtonBox.StandardButton.Apply | QDialogButtonBox.StandardButton.Discard | QDialogButtonBox.StandardButton.RestoreDefaults)
+        self.bb = QDialogButtonBox(
+            QDialogButtonBox.StandardButton.Close | QDialogButtonBox.StandardButton.Apply |
+            QDialogButtonBox.StandardButton.Discard | QDialogButtonBox.StandardButton.RestoreDefaults
+        )
         self.bb.button(self.bb.Apply).clicked.connect(self.accept)
         self.bb.button(self.bb.Discard).clicked.connect(self.reject)
         self.bb.button(self.bb.RestoreDefaults).setIcon(QIcon(I('clear_left.png')))

src/calibre/gui2/tweak_book/download.py

@@ -42,7 +42,8 @@ class ChooseResources(QWidget):
 
     @property
     def resources(self):
-        return {i.data(Qt.ItemDataRole.UserRole):self.original_resources[i.data(Qt.ItemDataRole.UserRole)] for i in self if i.checkState() == Qt.CheckState.Checked}
+        return {i.data(Qt.ItemDataRole.UserRole):self.original_resources[i.data(Qt.ItemDataRole.UserRole)]
+                for i in self if i.checkState() == Qt.CheckState.Checked}
 
     @resources.setter
     def resources(self, resources):

src/calibre/gui2/tweak_book/editor/text.py

@@ -697,7 +697,10 @@ class TextEdit(PlainTextEdit):
         # problem as well, since they use the overridden createMimeDataFromSelection() method
         # instead of the one from Qt (which makes copy() work), and allows proper customization
         # of the shortcuts
-        if ev in (QKeySequence.StandardKey.Copy, QKeySequence.StandardKey.Cut, QKeySequence.StandardKey.Paste, QKeySequence.StandardKey.Undo, QKeySequence.StandardKey.Redo):
+        if ev in (
+            QKeySequence.StandardKey.Copy, QKeySequence.StandardKey.Cut, QKeySequence.StandardKey.Paste,
+            QKeySequence.StandardKey.Undo, QKeySequence.StandardKey.Redo
+        ):
             ev.ignore()
             return True
         # This is used to convert typed hex codes into unicode
@@ -803,7 +806,9 @@ class TextEdit(PlainTextEdit):
             return self.smarts.set_text_alignment(self, formatting.partition('_')[-1])
         color = 'currentColor'
         if formatting in {'color', 'background-color'}:
-            color = QColorDialog.getColor(QColor(Qt.GlobalColor.black if formatting == 'color' else Qt.GlobalColor.white), self, _('Choose color'), QColorDialog.ColorDialogOption.ShowAlphaChannel)
+            color = QColorDialog.getColor(
+                QColor(Qt.GlobalColor.black if formatting == 'color' else Qt.GlobalColor.white),
+                self, _('Choose color'), QColorDialog.ColorDialogOption.ShowAlphaChannel)
             if not color.isValid():
                 return
             r, g, b, a = color.getRgb()

src/calibre/gui2/tweak_book/search.py

@@ -954,7 +954,8 @@ class SavedSearches(QWidget):
         self.upb = b = QToolButton(self)
         self.move_up_action = a = QAction(self)
         a.setShortcut(QKeySequence('Alt+Up'))
-        b.setIcon(QIcon(I('arrow-up.png'))), b.setToolTip(_('Move selected entries up') + ' [%s]' % a.shortcut().toString(QKeySequence.SequenceFormat.NativeText))
+        b.setIcon(QIcon(I('arrow-up.png')))
+        b.setToolTip(_('Move selected entries up') + ' [%s]' % a.shortcut().toString(QKeySequence.SequenceFormat.NativeText))
         connect_lambda(a.triggered, self, lambda self: self.move_entry(-1))
         self.searches.addAction(a)
         connect_lambda(b.clicked, self, lambda self: self.move_entry(-1))
@@ -962,7 +963,8 @@ class SavedSearches(QWidget):
         self.dnb = b = QToolButton(self)
         self.move_down_action = a = QAction(self)
         a.setShortcut(QKeySequence('Alt+Down'))
-        b.setIcon(QIcon(I('arrow-down.png'))), b.setToolTip(_('Move selected entries down') + ' [%s]' % a.shortcut().toString(QKeySequence.SequenceFormat.NativeText))
+        b.setIcon(QIcon(I('arrow-down.png')))
+        b.setToolTip(_('Move selected entries down') + ' [%s]' % a.shortcut().toString(QKeySequence.SequenceFormat.NativeText))
         connect_lambda(a.triggered, self, lambda self: self.move_entry(1))
         self.searches.addAction(a)
         connect_lambda(b.clicked, self, lambda self: self.move_entry(1))

src/calibre/gui2/tweak_book/ui.py

@@ -205,7 +205,8 @@ class Central(QStackedWidget):  # {{{
 
     def eventFilter(self, obj, event):
         base = super(Central, self)
-        if obj is not self.editor_tabs.tabBar() or event.type() != QEvent.Type.MouseButtonPress or event.button() not in (Qt.MouseButton.RightButton, Qt.MouseButton.MidButton):
+        if obj is not self.editor_tabs.tabBar() or event.type() != QEvent.Type.MouseButtonPress or event.button() not in (
+                Qt.MouseButton.RightButton, Qt.MouseButton.MidButton):
             return base.eventFilter(obj, event)
         index = self.editor_tabs.tabBar().tabAt(event.pos())
         if index < 0:
@@ -808,20 +809,26 @@ class Main(MainWindow):
         self.addDockWidget(Qt.DockWidgetArea.RightDockWidgetArea, d)
 
         d = create(_('Live CSS'), 'live-css')
-        d.setAllowedAreas(Qt.DockWidgetArea.LeftDockWidgetArea | Qt.DockWidgetArea.RightDockWidgetArea | Qt.DockWidgetArea.BottomDockWidgetArea | Qt.DockWidgetArea.TopDockWidgetArea)
+        d.setAllowedAreas(
+            Qt.DockWidgetArea.LeftDockWidgetArea | Qt.DockWidgetArea.RightDockWidgetArea |
+            Qt.DockWidgetArea.BottomDockWidgetArea | Qt.DockWidgetArea.TopDockWidgetArea)
         self.live_css = LiveCSS(self.preview, parent=d)
         d.setWidget(self.live_css)
         self.addDockWidget(Qt.DockWidgetArea.RightDockWidgetArea, d)
         d.close()  # Hidden by default
 
         d = create(_('Check book'), 'check-book')
-        d.setAllowedAreas(Qt.DockWidgetArea.LeftDockWidgetArea | Qt.DockWidgetArea.RightDockWidgetArea | Qt.DockWidgetArea.BottomDockWidgetArea | Qt.DockWidgetArea.TopDockWidgetArea)
+        d.setAllowedAreas(
+            Qt.DockWidgetArea.LeftDockWidgetArea | Qt.DockWidgetArea.RightDockWidgetArea |
+            Qt.DockWidgetArea.BottomDockWidgetArea | Qt.DockWidgetArea.TopDockWidgetArea)
         d.setWidget(self.check_book)
         self.addDockWidget(Qt.DockWidgetArea.TopDockWidgetArea, d)
         d.close()  # By default the check window is closed
 
         d = create(_('Inspector'), 'inspector')
-        d.setAllowedAreas(Qt.DockWidgetArea.LeftDockWidgetArea | Qt.DockWidgetArea.RightDockWidgetArea | Qt.DockWidgetArea.BottomDockWidgetArea | Qt.DockWidgetArea.TopDockWidgetArea)
+        d.setAllowedAreas(
+            Qt.DockWidgetArea.LeftDockWidgetArea | Qt.DockWidgetArea.RightDockWidgetArea |
+            Qt.DockWidgetArea.BottomDockWidgetArea | Qt.DockWidgetArea.TopDockWidgetArea)
         d.setWidget(self.preview.inspector)
         self.preview.inspector.setParent(d)
         self.addDockWidget(Qt.DockWidgetArea.BottomDockWidgetArea, d)
@@ -829,26 +836,34 @@ class Main(MainWindow):
         QTimer.singleShot(10, self.preview.inspector.connect_to_dock)
 
         d = create(_('Table of Contents'), 'toc-viewer')
-        d.setAllowedAreas(Qt.DockWidgetArea.LeftDockWidgetArea | Qt.DockWidgetArea.RightDockWidgetArea | Qt.DockWidgetArea.BottomDockWidgetArea | Qt.DockWidgetArea.TopDockWidgetArea)
+        d.setAllowedAreas(
+            Qt.DockWidgetArea.LeftDockWidgetArea | Qt.DockWidgetArea.RightDockWidgetArea |
+            Qt.DockWidgetArea.BottomDockWidgetArea | Qt.DockWidgetArea.TopDockWidgetArea)
         d.setWidget(self.toc_view)
         self.addDockWidget(Qt.DockWidgetArea.LeftDockWidgetArea, d)
         d.close()  # Hidden by default
 
         d = create(_('Text search'), 'text-search')
-        d.setAllowedAreas(Qt.DockWidgetArea.LeftDockWidgetArea | Qt.DockWidgetArea.RightDockWidgetArea | Qt.DockWidgetArea.BottomDockWidgetArea | Qt.DockWidgetArea.TopDockWidgetArea)
+        d.setAllowedAreas(
+            Qt.DockWidgetArea.LeftDockWidgetArea | Qt.DockWidgetArea.RightDockWidgetArea |
+            Qt.DockWidgetArea.BottomDockWidgetArea | Qt.DockWidgetArea.TopDockWidgetArea)
         d.setWidget(self.text_search)
         self.addDockWidget(Qt.DockWidgetArea.LeftDockWidgetArea, d)
         d.close()  # Hidden by default
 
         d = create(_('Checkpoints'), 'checkpoints')
-        d.setAllowedAreas(Qt.DockWidgetArea.LeftDockWidgetArea | Qt.DockWidgetArea.RightDockWidgetArea | Qt.DockWidgetArea.BottomDockWidgetArea | Qt.DockWidgetArea.TopDockWidgetArea)
+        d.setAllowedAreas(
+            Qt.DockWidgetArea.LeftDockWidgetArea | Qt.DockWidgetArea.RightDockWidgetArea |
+            Qt.DockWidgetArea.BottomDockWidgetArea | Qt.DockWidgetArea.TopDockWidgetArea)
         self.checkpoints = CheckpointView(self.boss.global_undo, parent=d)
         d.setWidget(self.checkpoints)
         self.addDockWidget(Qt.DockWidgetArea.LeftDockWidgetArea, d)
         d.close()  # Hidden by default
 
         d = create(_('Saved searches'), 'saved-searches')
-        d.setAllowedAreas(Qt.DockWidgetArea.LeftDockWidgetArea | Qt.DockWidgetArea.RightDockWidgetArea | Qt.DockWidgetArea.BottomDockWidgetArea | Qt.DockWidgetArea.TopDockWidgetArea)
+        d.setAllowedAreas(
+            Qt.DockWidgetArea.LeftDockWidgetArea | Qt.DockWidgetArea.RightDockWidgetArea |
+            Qt.DockWidgetArea.BottomDockWidgetArea | Qt.DockWidgetArea.TopDockWidgetArea)
         d.setWidget(self.saved_searches)
         self.addDockWidget(Qt.DockWidgetArea.LeftDockWidgetArea, d)
         d.close()  # Hidden by default

src/calibre/gui2/viewer/lookup.py

@@ -204,8 +204,10 @@ def create_profile():
 class Page(QWebEnginePage):
 
     def javaScriptConsoleMessage(self, level, msg, linenumber, source_id):
-        prefix = {QWebEnginePage.JavaScriptConsoleMessageLevel.InfoMessageLevel: 'INFO', QWebEnginePage.JavaScriptConsoleMessageLevel.WarningMessageLevel: 'WARNING'}.get(
+        prefix = {
-                level, 'ERROR')
+            QWebEnginePage.JavaScriptConsoleMessageLevel.InfoMessageLevel: 'INFO',
+            QWebEnginePage.JavaScriptConsoleMessageLevel.WarningMessageLevel: 'WARNING'
+        }.get(level, 'ERROR')
         if source_id == 'userscript:lookup.js':
             prints('%s: %s:%s: %s' % (prefix, source_id, linenumber, msg), file=sys.stderr)
             sys.stderr.flush()

src/calibre/gui2/webengine.py

@@ -41,7 +41,11 @@ def insert_scripts(profile, *scripts):
         sc.insert(script)
 
 
-def create_script(name, src, world=QWebEngineScript.ScriptWorldId.ApplicationWorld, injection_point=QWebEngineScript.InjectionPoint.DocumentReady, on_subframes=True):
+def create_script(
+    name, src, world=QWebEngineScript.ScriptWorldId.ApplicationWorld,
+    injection_point=QWebEngineScript.InjectionPoint.DocumentReady,
+    on_subframes=True
+):
     script = QWebEngineScript()
     if isinstance(src, bytes):
         src = src.decode('utf-8')

src/calibre/gui2/widgets.py

@@ -524,7 +524,8 @@ class EnLineEdit(LineEditECM, QLineEdit):  # {{{
     def event(self, ev):
         # See https://bugreports.qt.io/browse/QTBUG-46911
         if ev.type() == ev.ShortcutOverride and (
-                hasattr(ev, 'key') and ev.key() in (Qt.Key.Key_Left, Qt.Key.Key_Right) and (ev.modifiers() & ~Qt.KeyboardModifier.KeypadModifier) == Qt.KeyboardModifier.ControlModifier):
+                hasattr(ev, 'key') and ev.key() in (Qt.Key.Key_Left, Qt.Key.Key_Right) and (
+                    ev.modifiers() & ~Qt.KeyboardModifier.KeypadModifier) == Qt.KeyboardModifier.ControlModifier):
             ev.accept()
         return QLineEdit.event(self, ev)
 

src/calibre/gui2/widgets2.py

@@ -389,7 +389,10 @@ class FlowLayout(QLayout):  # {{{
                 return ans
             if wid is None:
                 return 0
-            return wid.style().layoutSpacing(QSizePolicy.ControlType.PushButton, QSizePolicy.ControlType.PushButton, Qt.Orientation.Horizontal if horizontal else Qt.Orientation.Vertical)
+            return wid.style().layoutSpacing(
+                QSizePolicy.ControlType.PushButton,
+                QSizePolicy.ControlType.PushButton,
+                Qt.Orientation.Horizontal if horizontal else Qt.Orientation.Vertical)
 
         lines, current_line = [], []
         gmap = {}