diff --git a/kcc/KCC_gui.py b/kcc/KCC_gui.py
index db1f1b3..25b8626 100644
--- a/kcc/KCC_gui.py
+++ b/kcc/KCC_gui.py
@@ -24,14 +24,14 @@ __docformat__ = 'restructuredtext en'
 
 import os
 import sys
-import shutil
 import traceback
 import urllib2
-import time
 import comic2ebook
 import kindlesplit
 import socket
-import string
+from string import split
+from time import sleep
+from shutil import move
 from psutil import virtual_memory
 from KCC_rc_web import WebContent
 from BaseHTTPServer import BaseHTTPRequestHandler, HTTPServer
@@ -111,7 +111,7 @@ class WebServerHandler(BaseHTTPRequestHandler):
                                  'alt="KCC Logo" src="' + GUIMain.webContent.logo + '" /> -</p>\n')
                 if len(GUIMain.completedWork) > 0 and not GUIMain.conversionAlive:
                     for key in sorted(GUIMain.completedWork.iterkeys()):
-                        self.wfile.write('<p><a href="' + key + '">' + string.split(key, '.')[0] + '</a></p>\n')
+                        self.wfile.write('<p><a href="' + key + '">' + split(key, '.')[0] + '</a></p>\n')
                 else:
                     self.wfile.write('<p style="font-weight: bold">No downloads are available.<br/>'
                                      'Convert some files and refresh this page.</p>\n')
@@ -242,7 +242,7 @@ class KindleUnpackThread(QtCore.QRunnable):
         profile = self.work[1]
         os.remove(item)
         mobiPath = item.replace('.epub', '.mobi')
-        shutil.move(mobiPath, mobiPath + '_toclean')
+        move(mobiPath, mobiPath + '_toclean')
         try:
             # MOBI file produced by KindleGen is hybrid. KF8 + M7 + Source header
             # KindleSplit is removing redundant data as we need only KF8 part for new Kindle models
@@ -341,7 +341,7 @@ class WorkerThread(QtCore.QThread):
                 currentJobs.append(unicode(GUI.JobList.item(i).text()))
         GUI.JobList.clear()
         for job in currentJobs:
-            time.sleep(0.5)
+            sleep(0.5)
             if not self.conversionAlive:
                 self.clean()
                 return
@@ -394,7 +394,7 @@ class WorkerThread(QtCore.QThread):
                         worker.signals.result.connect(self.addResult)
                         self.pool.start(worker)
                     self.pool.waitForDone()
-                    time.sleep(0.5)
+                    sleep(0.5)
                     self.kindlegenErrorCode = [0]
                     for errors in self.workerOutput:
                         if errors[0] != 0:
@@ -420,7 +420,7 @@ class WorkerThread(QtCore.QThread):
                             worker.signals.result.connect(self.addResult)
                             self.pool.start(worker)
                         self.pool.waitForDone()
-                        time.sleep(0.5)
+                        sleep(0.5)
                         for success in self.workerOutput:
                             if not success:
                                 self.errors = True
diff --git a/kcc/cbxarchive.py b/kcc/cbxarchive.py
index f20359c..010ee64 100644
--- a/kcc/cbxarchive.py
+++ b/kcc/cbxarchive.py
@@ -24,6 +24,7 @@ import zipfile
 import rarfile
 import locale
 from subprocess import Popen, STDOUT, PIPE
+from shutil import move
 
 
 class CBxArchive:
@@ -94,8 +95,7 @@ class CBxArchive:
         if 'ComicInfo.xml' in adir:
             adir.remove('ComicInfo.xml')
         if len(adir) == 1 and os.path.isdir(os.path.join(targetdir, adir[0])):
-            import shutil
             for f in os.listdir(os.path.join(targetdir, adir[0])):
-                shutil.move(os.path.join(targetdir, adir[0], f), targetdir)
+                move(os.path.join(targetdir, adir[0], f), targetdir)
             os.rmdir(os.path.join(targetdir, adir[0]))
         return targetdir
diff --git a/kcc/comic2ebook.py b/kcc/comic2ebook.py
index 5526c7a..2ee8155 100755
--- a/kcc/comic2ebook.py
+++ b/kcc/comic2ebook.py
@@ -25,14 +25,15 @@ __docformat__ = 'restructuredtext en'
 
 import os
 import sys
-import tempfile
 import re
 import stat
 import string
+from tempfile import mkdtemp
 from shutil import move, copyfile, copytree, rmtree, make_archive
 from optparse import OptionParser, OptionGroup
 from multiprocessing import Pool, freeze_support
 from xml.dom.minidom import parse
+from uuid import uuid4
 try:
     from PyQt4 import QtCore
 except ImportError:
@@ -41,6 +42,7 @@ import comic2panel
 import image
 import cbxarchive
 import pdfjpgextract
+import unicodedata
 
 
 def buildHTML(path, imgfile):
@@ -169,7 +171,6 @@ def buildHTML(path, imgfile):
 
 
 def buildNCX(dstdir, title, chapters):
-    from uuid import uuid4
     options.uuid = str(uuid4())
     options.uuid = options.uuid.encode('utf-8')
     ncxfile = os.path.join(dstdir, 'OEBPS', 'toc.ncx')
@@ -537,7 +538,7 @@ def getWorkFolder(afile):
     if len(afile) > 240:
         raise UserWarning("Path is too long.")
     if os.path.isdir(afile):
-        workdir = tempfile.mkdtemp('', 'KCC-TMP-')
+        workdir = mkdtemp('', 'KCC-TMP-')
         try:
             os.rmdir(workdir)   # needed for copytree() fails if dst already exists
             fullPath = os.path.join(workdir, 'OEBPS', 'Images')
@@ -556,7 +557,7 @@ def getWorkFolder(afile):
             rmtree(path, True)
             raise UserWarning("Failed to extract images.")
     else:
-        workdir = tempfile.mkdtemp('', 'KCC-TMP-')
+        workdir = mkdtemp('', 'KCC-TMP-')
         cbx = cbxarchive.CBxArchive(afile)
         if cbx.isCbxFile():
             try:
@@ -628,7 +629,6 @@ def checkComicInfo(path, originalPath):
 
 def slugify(value):
     # Normalizes string, converts to lowercase, removes non-alpha characters and converts spaces to hyphens.
-    import unicodedata
     if isinstance(value, str):
         #noinspection PyArgumentList
         value = unicodedata.normalize('NFKD', unicode(value, 'latin1')).encode('ascii', 'ignore')
@@ -684,7 +684,7 @@ def getDirectorySize(start_path='.'):
 
 
 def createNewTome():
-    tomePathRoot = tempfile.mkdtemp('', 'KCC-TMP-')
+    tomePathRoot = mkdtemp('', 'KCC-TMP-')
     tomePath = os.path.join(tomePathRoot, 'OEBPS', 'Images')
     os.makedirs(tomePath)
     return tomePath, tomePathRoot