diff --git a/src/calibre/ebooks/oeb/transforms/rasterize.py b/src/calibre/ebooks/oeb/transforms/rasterize.py
index 7962eabf30..29e9109592 100644
--- a/src/calibre/ebooks/oeb/transforms/rasterize.py
+++ b/src/calibre/ebooks/oeb/transforms/rasterize.py
@@ -8,15 +8,10 @@ __copyright__ = '2008, Marshall T. Vandegrift <llasram@gmail.com>'
 
 import os, re
 from urlparse import urldefrag
+
 from lxml import etree
-from PyQt5.QtCore import Qt
-from PyQt5.QtCore import QByteArray
-from PyQt5.QtCore import QBuffer
-from PyQt5.QtCore import QIODevice
-from PyQt5.QtGui import QColor
-from PyQt5.QtGui import QImage
-from PyQt5.QtGui import QPainter
-from PyQt5.QtSvg import QSvgRenderer
+from PyQt5.Qt import (
+    Qt, QByteArray, QBuffer, QIODevice, QColor, QImage, QPainter, QSvgRenderer)
 from calibre.ebooks.oeb.base import XHTML, XLINK
 from calibre.ebooks.oeb.base import SVG_MIME, PNG_MIME
 from calibre.ebooks.oeb.base import xml2str, xpath
diff --git a/src/calibre/gui2/cover_flow.py b/src/calibre/gui2/cover_flow.py
index 57da52624f..f36c18da9c 100644
--- a/src/calibre/gui2/cover_flow.py
+++ b/src/calibre/gui2/cover_flow.py
@@ -359,7 +359,7 @@ class CoverFlowMixin(object):
         self.cf_last_updated_at = time.time()
 
 def test():
-    from PyQt5.QtGui import QApplication, QMainWindow
+    from PyQt5.Qt import QApplication, QMainWindow
     app = QApplication([])
     w = QMainWindow()
     cf = CoverFlow()
@@ -378,7 +378,7 @@ def main(args=sys.argv):
     return 0
 
 if __name__ == '__main__':
-    from PyQt5.QtGui import QApplication, QMainWindow
+    from PyQt5.Qt import QApplication, QMainWindow
     app = QApplication([])
     w = QMainWindow()
     cf = CoverFlow()
diff --git a/src/calibre/gui2/dialogs/comicconf.py b/src/calibre/gui2/dialogs/comicconf.py
index 33b3d3c527..cf7e41b1ac 100644
--- a/src/calibre/gui2/dialogs/comicconf.py
+++ b/src/calibre/gui2/dialogs/comicconf.py
@@ -4,7 +4,7 @@ __copyright__ = '2008, Kovid Goyal kovid@kovidgoyal.net'
 __docformat__ = 'restructuredtext en'
 
 ''''''
-from PyQt5.QtGui import QDialog
+from PyQt5.Qt import QDialog
 from calibre.gui2.dialogs.comicconf_ui import Ui_Dialog
 from calibre.ebooks.lrf.comic.convert_from import config, PROFILES
 
diff --git a/src/calibre/gui2/dialogs/password.py b/src/calibre/gui2/dialogs/password.py
index c215b58eee..062d2becb1 100644
--- a/src/calibre/gui2/dialogs/password.py
+++ b/src/calibre/gui2/dialogs/password.py
@@ -1,8 +1,7 @@
 __license__   = 'GPL v3'
 __copyright__ = '2008, Kovid Goyal <kovid at kovidgoyal.net>'
 import re
-from PyQt5.QtGui import QDialog, QLineEdit
-from PyQt5.QtCore import Qt
+from PyQt5.Qt import QDialog, QLineEdit, Qt
 
 from calibre.gui2.dialogs.password_ui import Ui_Dialog
 from calibre.gui2 import dynamic
diff --git a/src/calibre/gui2/dialogs/plugin_updater.py b/src/calibre/gui2/dialogs/plugin_updater.py
index aeb7605c83..57d96e927e 100644
--- a/src/calibre/gui2/dialogs/plugin_updater.py
+++ b/src/calibre/gui2/dialogs/plugin_updater.py
@@ -13,8 +13,7 @@ from PyQt5.Qt import (Qt, QUrl, QFrame, QVBoxLayout, QLabel, QBrush, QTextEdit,
                       QComboBox, QAbstractItemView, QHBoxLayout, QDialogButtonBox,
                       QAbstractTableModel, QVariant, QTableView, QModelIndex,
                       QSortFilterProxyModel, QAction, QIcon, QDialog,
-                      QFont, QPixmap, QSize)
-from PyQt5.QtGui import QLineEdit
+                      QFont, QPixmap, QSize, QLineEdit)
 
 from calibre import browser, prints
 from calibre.constants import numeric_version, iswindows, isosx, DEBUG, __appname__, __version__
diff --git a/src/calibre/gui2/dialogs/tag_categories.py b/src/calibre/gui2/dialogs/tag_categories.py
index ce234ad096..dcdef073a4 100644
--- a/src/calibre/gui2/dialogs/tag_categories.py
+++ b/src/calibre/gui2/dialogs/tag_categories.py
@@ -2,8 +2,8 @@ __license__   = 'GPL v3'
 
 __copyright__ = '2008, Kovid Goyal <kovid at kovidgoyal.net>'
 
-from PyQt5.QtCore import Qt
-from PyQt5.QtGui import QDialog, QIcon, QListWidgetItem
+from PyQt5.Qt import (
+    Qt, QDialog, QIcon, QListWidgetItem)
 
 from calibre.gui2.dialogs.tag_categories_ui import Ui_TagCategories
 from calibre.gui2.dialogs.confirm_delete import confirm
diff --git a/src/calibre/gui2/dialogs/tag_editor.py b/src/calibre/gui2/dialogs/tag_editor.py
index c7f2aa40d2..8a8edf042a 100644
--- a/src/calibre/gui2/dialogs/tag_editor.py
+++ b/src/calibre/gui2/dialogs/tag_editor.py
@@ -3,8 +3,7 @@ __copyright__ = '2008, Kovid Goyal <kovid at kovidgoyal.net>'
 
 from functools import partial
 
-from PyQt5.QtCore import Qt
-from PyQt5.QtGui import QDialog
+from PyQt5.Qt import Qt, QDialog
 
 from calibre.gui2.dialogs.tag_editor_ui import Ui_TagEditor
 from calibre.gui2 import question_dialog, error_dialog, gprefs
diff --git a/src/calibre/gui2/main.py b/src/calibre/gui2/main.py
index b1a3f7234e..61b565acda 100644
--- a/src/calibre/gui2/main.py
+++ b/src/calibre/gui2/main.py
@@ -480,7 +480,7 @@ if __name__ == '__main__':
         if not iswindows:
             raise
         tb = traceback.format_exc()
-        from PyQt5.QtGui import QErrorMessage
+        from PyQt5.Qt import QErrorMessage
         logfile = os.path.join(os.path.expanduser('~'), 'calibre.log')
         if os.path.exists(logfile):
             log = open(logfile).read().decode('utf-8', 'ignore')
diff --git a/src/calibre/gui2/proceed.py b/src/calibre/gui2/proceed.py
index 07b9912cb3..ae1228995f 100644
--- a/src/calibre/gui2/proceed.py
+++ b/src/calibre/gui2/proceed.py
@@ -239,7 +239,7 @@ class ProceedQuestion(QDialog):
 
 def main():
     from calibre.gui2 import Application
-    from PyQt5.QtGui import QMainWindow
+    from PyQt5.Qt import QMainWindow
     app = Application([])
     w = QMainWindow()
     w.show()