From 9af6fc5d626adae310973cea5e796140a7adcd2c Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Wed, 13 May 2020 21:33:10 +0530
Subject: [PATCH] pep8

---
 src/calibre/gui2/dialogs/edit_authors_dialog.py | 2 ++
 src/calibre/gui2/dialogs/quickview.py           | 8 ++++----
 src/calibre/gui2/dialogs/tag_list_editor.py     | 1 +
 src/calibre/gui2/tag_browser/ui.py              | 2 +-
 4 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/src/calibre/gui2/dialogs/edit_authors_dialog.py b/src/calibre/gui2/dialogs/edit_authors_dialog.py
index e9e71f4bd0..43c7faad24 100644
--- a/src/calibre/gui2/dialogs/edit_authors_dialog.py
+++ b/src/calibre/gui2/dialogs/edit_authors_dialog.py
@@ -24,6 +24,7 @@ class tableItem(QTableWidgetItem):
     def __lt__(self, other):
         return sort_key(unicode_type(self.text())) < sort_key(unicode_type(other.text()))
 
+
 class EditColumnDelegate(QItemDelegate):
 
     def __init__(self, completion_data):
@@ -43,6 +44,7 @@ class EditColumnDelegate(QItemDelegate):
             return editor
         return QItemDelegate.createEditor(self, parent, option, index)
 
+
 class EditAuthorsDialog(QDialog, Ui_EditAuthorsDialog):
 
     def __init__(self, parent, db, id_to_select, select_sort, select_link):
diff --git a/src/calibre/gui2/dialogs/quickview.py b/src/calibre/gui2/dialogs/quickview.py
index 35ccf7912b..45471fa7f5 100644
--- a/src/calibre/gui2/dialogs/quickview.py
+++ b/src/calibre/gui2/dialogs/quickview.py
@@ -502,10 +502,10 @@ class Quickview(QDialog, Ui_Quickview):
 
             for v in vals:
                 a = QListWidgetItem(v)
-                a.setToolTip('<p>' +
-                             _('Click to show only books with this item. '
-                             'Double click to search for this item in the tag browser')
-                             + '</p>')
+                a.setToolTip(
+                    '<p>' + _(
+                        'Click to show only books with this item. '
+                        'Double click to search for this item in the tag browser') + '</p>')
                 self.items.addItem(a)
             self.items.setCurrentRow(0)
 
diff --git a/src/calibre/gui2/dialogs/tag_list_editor.py b/src/calibre/gui2/dialogs/tag_list_editor.py
index f012329ff3..80cb9d43b7 100644
--- a/src/calibre/gui2/dialogs/tag_list_editor.py
+++ b/src/calibre/gui2/dialogs/tag_list_editor.py
@@ -103,6 +103,7 @@ class EditColumnDelegate(QItemDelegate):
             return editor
         return None
 
+
 class TagListEditor(QDialog, Ui_TagListEditor):
 
     def __init__(self, window, cat_name, tag_to_match, get_book_ids, sorter):
diff --git a/src/calibre/gui2/tag_browser/ui.py b/src/calibre/gui2/tag_browser/ui.py
index 60f05b5879..d43ad84e47 100644
--- a/src/calibre/gui2/tag_browser/ui.py
+++ b/src/calibre/gui2/tag_browser/ui.py
@@ -620,7 +620,7 @@ class TagBrowserWidget(QFrame):  # {{{
         if colon > 0:
             key = self._parent.library_view.model().db.\
                         field_metadata.search_term_to_field_key(txt[:colon])
-            if self._parent.library_view.model().db.field_metadata.has_key(key):
+            if key in self._parent.library_view.model().db.field_metadata:
                 txt = txt[colon+1:]
             else:
                 key = None