diff --git a/calibre-plugin/config.py b/calibre-plugin/config.py
index d53415f6..a3ae4504 100644
--- a/calibre-plugin/config.py
+++ b/calibre-plugin/config.py
@@ -18,13 +18,13 @@ from collections import OrderedDict
 try:
     from PyQt5 import QtWidgets as QtGui
     from PyQt5.Qt import (QWidget, QVBoxLayout, QHBoxLayout, QGridLayout, QLabel,
-                          QLineEdit, QWidget, QComboBox, QCheckBox, QPushButton, QTabWidget,
+                          QLineEdit, QComboBox, QCheckBox, QPushButton, QTabWidget,
                           QScrollArea, QGroupBox, QButtonGroup, QRadioButton,
                           Qt)
 except ImportError as e:
     from PyQt4 import QtGui
     from PyQt4.Qt import (QWidget, QVBoxLayout, QHBoxLayout, QGridLayout, QLabel,
-                          QLineEdit, QWidget, QComboBox, QCheckBox, QPushButton, QTabWidget,
+                          QLineEdit, QComboBox, QCheckBox, QPushButton, QTabWidget,
                           QScrollArea, QGroupBox, QButtonGroup, QRadioButton,
                           Qt)
 try:
diff --git a/fanficfare/adapters/base_adapter.py b/fanficfare/adapters/base_adapter.py
index 89cff001..cf693cf7 100644
--- a/fanficfare/adapters/base_adapter.py
+++ b/fanficfare/adapters/base_adapter.py
@@ -33,7 +33,6 @@ import copy
 from bs4 import BeautifulSoup, Tag
 
 
-from ..htmlcleanup import stripHTML
 from ..htmlheuristics import replace_br_with_p
 
 logger = logging.getLogger(__name__)
diff --git a/fanficfare/browsercache/basebrowsercache.py b/fanficfare/browsercache/basebrowsercache.py
index 312ba4ed..5550f06e 100644
--- a/fanficfare/browsercache/basebrowsercache.py
+++ b/fanficfare/browsercache/basebrowsercache.py
@@ -59,8 +59,6 @@ def do_cprofile(func):
 class BrowserCacheException(Exception):
     pass
 
-from ..six import ensure_binary, ensure_text
-
 ## difference in seconds between Jan 1 1601 and Jan 1 1970.  Chrome
 ## caches (so far) have kept time stamps as microseconds since
 ## 1-1-1601 a Windows/Cobol thing.
diff --git a/fanficfare/configurable.py b/fanficfare/configurable.py
index d8099215..f229f35d 100644
--- a/fanficfare/configurable.py
+++ b/fanficfare/configurable.py
@@ -67,7 +67,6 @@ from .browsercache import BrowserCache
 try:
     from . import adapters
 except ImportError:
-    import sys
     if "fanficfare.adapters" in sys.modules:
         adapters = sys.modules["fanficfare.adapters"]
     elif "calibre_plugins.fanficfare_plugin.fanficfare.adapters" in sys.modules:
@@ -288,7 +287,6 @@ def get_valid_set_options():
                'dedup_order_chapter_list': (['wuxiaworld.co', 'novelupdates.cc'], None, boollist),
                'show_nsfw_cover_images': (['fiction.live'], None, boollist),
                'show_timestamps': (['fiction.live'], None, boollist),
-               'show_nsfw_cover_images': (['fiction.live'], None, boollist)
                }
 
     return dict(valdict)