diff --git a/Lib/idlelib/EditorWindow.py b/Lib/idlelib/EditorWindow.py
index 1520ad0..ef35ffe 100644
--- a/Lib/idlelib/EditorWindow.py
+++ b/Lib/idlelib/EditorWindow.py
@@ -13,7 +13,6 @@
 import webbrowser
 
 from idlelib.MultiCall import MultiCallCreator
-from idlelib import idlever
 from idlelib import WindowList
 from idlelib import SearchDialog
 from idlelib import GrepDialog
@@ -125,7 +124,6 @@
                     EditorWindow.help_url = 'file://' + EditorWindow.help_url
             else:
                 EditorWindow.help_url = "https://docs.python.org/%d.%d/" % sys.version_info[:2]
-        currentTheme=idleConf.CurrentTheme()
         self.flist = flist
         root = root or flist.root
         self.root = root
@@ -714,7 +712,7 @@
         cmd = [sys.executable,
                '-c',
                'from turtledemo.__main__ import main; main()']
-        p = subprocess.Popen(cmd, shell=False)
+        subprocess.Popen(cmd, shell=False)
 
     def gotoline(self, lineno):
         if lineno is not None and lineno > 0:
diff --git a/Lib/idlelib/PyShell.py b/Lib/idlelib/PyShell.py
index 51aa3f4..a5236ab 100755
--- a/Lib/idlelib/PyShell.py
+++ b/Lib/idlelib/PyShell.py
@@ -10,8 +10,6 @@
 import threading
 import time
 import tokenize
-import traceback
-import types
 import io
 
 import linecache
@@ -32,7 +30,6 @@
 from idlelib.UndoDelegator import UndoDelegator
 from idlelib.OutputWindow import OutputWindow
 from idlelib.configHandler import idleConf
-from idlelib import idlever
 from idlelib import rpc
 from idlelib import Debugger
 from idlelib import RemoteDebugger
@@ -166,7 +163,7 @@
         filename = self.io.filename
         text.tag_add("BREAK", "%d.0" % lineno, "%d.0" % (lineno+1))
         try:
-            i = self.breakpoints.index(lineno)
+            self.breakpoints.index(lineno)
         except ValueError:  # only add if missing, i.e. do once
             self.breakpoints.append(lineno)
         try:    # update the subprocess debugger
@@ -427,7 +424,7 @@
             try:
                 self.rpcclt = MyRPCClient(addr)
                 break
-            except OSError as err:
+            except OSError:
                 pass
         else:
             self.display_port_binding_error()
@@ -448,7 +445,7 @@
         self.rpcclt.listening_sock.settimeout(10)
         try:
             self.rpcclt.accept()
-        except socket.timeout as err:
+        except socket.timeout:
             self.display_no_subprocess_error()
             return None
         self.rpcclt.register("console", self.tkconsole)
@@ -483,7 +480,7 @@
         self.spawn_subprocess()
         try:
             self.rpcclt.accept()
-        except socket.timeout as err:
+        except socket.timeout:
             self.display_no_subprocess_error()
             return None
         self.transfer_path(with_cwd=with_cwd)
@@ -501,7 +498,7 @@
         # restart subprocess debugger
         if debug:
             # Restarted debugger connects to current instance of debug GUI
-            gui = RemoteDebugger.restart_subprocess_debugger(self.rpcclt)
+            RemoteDebugger.restart_subprocess_debugger(self.rpcclt)
             # reload remote debugger breakpoints for all PyShellEditWindows
             debug.load_breakpoints()
         self.compile.compiler.flags = self.original_compiler_flags
@@ -1231,7 +1228,7 @@
         while i > 0 and line[i-1] in " \t":
             i = i-1
         line = line[:i]
-        more = self.interp.runsource(line)
+        self.interp.runsource(line)
 
     def open_stack_viewer(self, event=None):
         if self.interp.rpcclt:
@@ -1245,7 +1242,7 @@
                 master=self.text)
             return
         from idlelib.StackViewer import StackBrowser
-        sv = StackBrowser(self.root, self.flist)
+        StackBrowser(self.root, self.flist)
 
     def view_restart_mark(self, event=None):
         self.text.see("iomark")
diff --git a/Lib/idlelib/RemoteDebugger.py b/Lib/idlelib/RemoteDebugger.py
index 6672ba6..be2262f 100644
--- a/Lib/idlelib/RemoteDebugger.py
+++ b/Lib/idlelib/RemoteDebugger.py
@@ -98,7 +98,7 @@
         else:
             tb = tracebacktable[tbid]
         stack, i = self.idb.get_stack(frame, tb)
-        stack = [(wrap_frame(frame), k) for frame, k in stack]
+        stack = [(wrap_frame(frame2), k) for frame2, k in stack]
         return stack, i
 
     def run(self, cmd):
diff --git a/Lib/idlelib/ScriptBinding.py b/Lib/idlelib/ScriptBinding.py
index 3d11e97..e71ddf4 100644
--- a/Lib/idlelib/ScriptBinding.py
+++ b/Lib/idlelib/ScriptBinding.py
@@ -18,7 +18,6 @@
 """
 
 import os
-import string
 import tabnanny
 import tokenize
 import tkinter.messagebox as tkMessageBox
diff --git a/Lib/idlelib/macosxSupport.py b/Lib/idlelib/macosxSupport.py
index 65bd688..5813749 100644
--- a/Lib/idlelib/macosxSupport.py
+++ b/Lib/idlelib/macosxSupport.py
@@ -123,11 +123,9 @@
     #
     # Due to a (mis-)feature of TkAqua the user will also see an empty Help
     # menu.
-    from tkinter import Menu, Text, Text
-    from idlelib.EditorWindow import prepstr, get_accelerator
+    from tkinter import Menu
     from idlelib import Bindings
     from idlelib import WindowList
-    from idlelib.MultiCall import MultiCallCreator
 
     closeItem = Bindings.menudefs[0][1][-2]
 
diff --git a/Lib/idlelib/run.py b/Lib/idlelib/run.py
index 13cec62..228875c 100644
--- a/Lib/idlelib/run.py
+++ b/Lib/idlelib/run.py
@@ -1,8 +1,6 @@
 import sys
-import io
 import linecache
 import time
-import socket
 import traceback
 import _thread as thread
 import threading