From 2d0816daa0588c3c6b98496c0c4e2ff9cf63cc96 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Fri, 15 Jul 2022 16:14:55 +0530
Subject: [PATCH] pep8

---
 src/calibre/db/tests/reading.py          | 1 -
 src/calibre/gui2/dialogs/search.py       | 2 +-
 src/calibre/utils/formatter_functions.py | 2 +-
 src/calibre/utils/search_query_parser.py | 2 +-
 4 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/src/calibre/db/tests/reading.py b/src/calibre/db/tests/reading.py
index 951cbae765..fc0fd88955 100644
--- a/src/calibre/db/tests/reading.py
+++ b/src/calibre/db/tests/reading.py
@@ -747,7 +747,6 @@ class ReadingTest(BaseTest):
     # }}}
 
     def test_template_db_functions(self):  # {{{
-        from calibre.ebooks.metadata.book.base import Metadata
         from calibre.ebooks.metadata.book.formatter import SafeFormat
         formatter = SafeFormat()
 
diff --git a/src/calibre/gui2/dialogs/search.py b/src/calibre/gui2/dialogs/search.py
index bc026e7379..fc7b7b17e1 100644
--- a/src/calibre/gui2/dialogs/search.py
+++ b/src/calibre/gui2/dialogs/search.py
@@ -328,7 +328,7 @@ class SearchDialog(QDialog):
         # dialog to help test the template
         from calibre.gui2.ui import get_gui
         view = get_gui().library_view
-        rows = view.selectionModel().selectedRows()[0:10] # Maximum of 10 books
+        rows = view.selectionModel().selectedRows()[0:10]  # Maximum of 10 books
         mi = [db.new_api.get_proxy_metadata(db.data.index_to_id(x.row())) for x in rows]
         self.template_program_box.set_mi(mi)
 
diff --git a/src/calibre/utils/formatter_functions.py b/src/calibre/utils/formatter_functions.py
index 86f0d503bf..91a28097c5 100644
--- a/src/calibre/utils/formatter_functions.py
+++ b/src/calibre/utils/formatter_functions.py
@@ -12,7 +12,7 @@ __copyright__ = '2010, Kovid Goyal <kovid@kovidgoyal.net>'
 __docformat__ = 'restructuredtext en'
 
 import inspect, re, traceback, numbers
-from contextlib import contextmanager, suppress
+from contextlib import suppress
 from datetime import datetime, timedelta
 from functools import partial
 from math import trunc, floor, ceil, modf
diff --git a/src/calibre/utils/search_query_parser.py b/src/calibre/utils/search_query_parser.py
index e0bb483d3b..e72ee4c72c 100644
--- a/src/calibre/utils/search_query_parser.py
+++ b/src/calibre/utils/search_query_parser.py
@@ -152,7 +152,7 @@ class Parser:
     REPLACEMENTS = tuple(('\\' + x, codepoint_to_chr(i + 1)) for i, x in enumerate('\\"()'))
 
     # the sep must be a printable character sequence that won't actually appear naturally
-    docstring_sep = '□ༀ؆' # Unicode white square, Tibetian Om, Arabic-Indic Cube Root
+    docstring_sep = '□ༀ؆'  # Unicode white square, Tibetian Om, Arabic-Indic Cube Root
 
     # Had to translate named constants to numeric values
     lex_scanner = re.Scanner([