diff --git a/nw/constants/constants.py b/nw/constants/constants.py
index c6e17a15..cd7bf350 100644
--- a/nw/constants/constants.py
+++ b/nw/constants/constants.py
@@ -25,7 +25,7 @@
  along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 
-from nw.constants.enum import nwItemClass, nwItemLayout, nwOutline, nwDocInsert
+from nw.constants.enum import nwItemClass, nwItemLayout, nwOutline
 
 class nwConst():
 
diff --git a/nw/core/document.py b/nw/core/document.py
index 560815e6..8c8b523f 100644
--- a/nw/core/document.py
+++ b/nw/core/document.py
@@ -28,7 +28,7 @@
 import logging
 import nw
 
-from os import path, mkdir, rename, unlink
+from os import path, rename, unlink
 
 from nw.core.item import NWItem
 from nw.constants import nwAlert
diff --git a/nw/core/tools.py b/nw/core/tools.py
index dd2c8c84..b46f0db8 100644
--- a/nw/core/tools.py
+++ b/nw/core/tools.py
@@ -30,8 +30,6 @@
 import logging
 import nw
 
-from os import path, unlink, rmdir
-
 logger = logging.getLogger(__name__)
 
 # =============================================================================================== #
diff --git a/nw/error.py b/nw/error.py
index 0301f3ba..e8466657 100644
--- a/nw/error.py
+++ b/nw/error.py
@@ -76,9 +76,9 @@ def exceptionHandler(exType, exValue, exTrace):
     """Function to catch unhandled global exceptions.
     """
     import logging
-    from traceback import print_tb, format_tb
+    from traceback import print_tb
     from nw import CONFIG
-    from PyQt5.QtWidgets import qApp, QApplication, QErrorMessage, QMessageBox
+    from PyQt5.QtWidgets import qApp, QErrorMessage
 
     logger = logging.getLogger(__name__)
     logger.error("%s: %s" % (exType.__name__, str(exValue)))
diff --git a/nw/gui/doceditor.py b/nw/gui/doceditor.py
index a4d88f65..2ec72b62 100644
--- a/nw/gui/doceditor.py
+++ b/nw/gui/doceditor.py
@@ -39,7 +39,7 @@ from PyQt5.QtCore import (
     Qt, QSize, QThread, QTimer, pyqtSlot, QRegExp, QRegularExpression
 )
 from PyQt5.QtGui import (
-    QTextCursor, QTextOption, QKeySequence, QFont, QColor, QPalette, QIcon,
+    QTextCursor, QTextOption, QKeySequence, QFont, QColor, QPalette,
     QTextDocument, QCursor, QPixmap
 )
 from PyQt5.QtWidgets import (
diff --git a/nw/gui/docsplit.py b/nw/gui/docsplit.py
index d143a056..60b4069a 100644
--- a/nw/gui/docsplit.py
+++ b/nw/gui/docsplit.py
@@ -33,6 +33,7 @@ from PyQt5.QtWidgets import (
     QDialog, QVBoxLayout, QComboBox, QListWidget, QAbstractItemView,
     QListWidgetItem, QDialogButtonBox, QLabel
 )
+
 from nw.constants import nwAlert, nwItemType, nwItemClass, nwItemLayout
 from nw.gui.custom import QHelpLabel
 from nw.core import NWDoc
diff --git a/nw/gui/itemdetails.py b/nw/gui/itemdetails.py
index 4d0f5641..dea27381 100644
--- a/nw/gui/itemdetails.py
+++ b/nw/gui/itemdetails.py
@@ -29,11 +29,11 @@ import logging
 import nw
 
 from PyQt5.QtCore import Qt
-from PyQt5.QtGui import QFont, QIcon, QPixmap
+from PyQt5.QtGui import QFont, QPixmap
 from PyQt5.QtWidgets import QWidget, QGridLayout, QLabel
 
 from nw.constants import (
-    nwLabels, nwItemClass, nwItemType, nwItemLayout, nwUnicode
+    nwLabels, nwItemClass, nwItemType, nwItemLayout
 )
 
 logger = logging.getLogger(__name__)
diff --git a/nw/gui/itemeditor.py b/nw/gui/itemeditor.py
index 65c4cde9..b1c2421a 100644
--- a/nw/gui/itemeditor.py
+++ b/nw/gui/itemeditor.py
@@ -28,7 +28,6 @@
 import logging
 import nw
 
-from PyQt5.QtCore import Qt
 from PyQt5.QtWidgets import (
     QDialog, QVBoxLayout, QGridLayout, QLineEdit, QComboBox, QLabel,
     QDialogButtonBox
diff --git a/nw/gui/outlinedetails.py b/nw/gui/outlinedetails.py
index 5e197449..e18ac9d1 100644
--- a/nw/gui/outlinedetails.py
+++ b/nw/gui/outlinedetails.py
@@ -30,7 +30,8 @@ import nw
 
 from PyQt5.QtCore import Qt
 from PyQt5.QtWidgets import (
-    QScrollArea, QWidget, QGridLayout, QHBoxLayout, QGroupBox, QLabel, QSizePolicy
+    QScrollArea, QWidget, QGridLayout, QHBoxLayout, QGroupBox, QLabel,
+    QSizePolicy
 )
 
 from nw.constants import nwLabels, nwKeyWords
diff --git a/nw/gui/projtree.py b/nw/gui/projtree.py
index d6eb8cdf..3baf5257 100644
--- a/nw/gui/projtree.py
+++ b/nw/gui/projtree.py
@@ -30,15 +30,15 @@ import logging
 import nw
 
 from PyQt5.QtCore import Qt, QSize
-from PyQt5.QtGui import QFont, QColor, QIcon
+from PyQt5.QtGui import QIcon
 from PyQt5.QtWidgets import (
     qApp, QTreeWidget, QTreeWidgetItem, QAbstractItemView, QMessageBox,
-    QHeaderView, QMenu, QAction
+    QMenu, QAction
 )
 
 from nw.core import NWDoc
 from nw.constants import (
-    nwLabels, nwItemType, nwItemClass, nwItemLayout, nwAlert, nwUnicode
+    nwLabels, nwItemType, nwItemClass, nwItemLayout, nwAlert
 )
 
 logger = logging.getLogger(__name__)
diff --git a/nw/gui/statusbar.py b/nw/gui/statusbar.py
index 040125aa..395fc5cc 100644
--- a/nw/gui/statusbar.py
+++ b/nw/gui/statusbar.py
@@ -30,8 +30,8 @@ import nw
 
 from time import time
 
-from PyQt5.QtCore import Qt, QTimer
-from PyQt5.QtGui import QColor, QPixmap, QFont, QPainter
+from PyQt5.QtCore import QTimer
+from PyQt5.QtGui import QColor, QPainter
 from PyQt5.QtWidgets import qApp, QStatusBar, QLabel, QAbstractButton
 
 from nw.core import NWSpellCheck
diff --git a/nw/guimain.py b/nw/guimain.py
index 09571d61..46db9d1f 100644
--- a/nw/guimain.py
+++ b/nw/guimain.py
@@ -46,7 +46,7 @@ from nw.gui import (
     GuiProjectSettings, GuiProjectTree, GuiWritingStats, GuiAbout
 )
 from nw.core import NWProject, NWDoc, NWIndex
-from nw.constants import nwFiles, nwItemType, nwAlert
+from nw.constants import nwItemType, nwAlert
 
 logger = logging.getLogger(__name__)