diff --git a/src/calibre/__init__.py b/src/calibre/__init__.py
index f5d4a2e628..5f441311e4 100644
--- a/src/calibre/__init__.py
+++ b/src/calibre/__init__.py
@@ -320,7 +320,7 @@ def extract(path, dir):
 
 
 def get_proxies(debug=True):
-    from urllib import getproxies
+    from polyglot.urllib import getproxies
     proxies = getproxies()
     for key, proxy in list(proxies.items()):
         if not proxy or '..' in proxy or key == 'auto':
@@ -382,10 +382,10 @@ def get_proxy_info(proxy_scheme, proxy_string):
     is not available in the string. If an exception occurs parsing the string
     this method returns None.
     '''
-    import urlparse
+    from polyglot.urllib import urlparse
     try:
         proxy_url = u'%s://%s'%(proxy_scheme, proxy_string)
-        urlinfo = urlparse.urlparse(proxy_url)
+        urlinfo = urlparse(proxy_url)
         ans = {
             u'scheme': urlinfo.scheme,
             u'hostname': urlinfo.hostname,
diff --git a/src/calibre/db/cli/main.py b/src/calibre/db/cli/main.py
index 1a957e0820..9833d919d4 100644
--- a/src/calibre/db/cli/main.py
+++ b/src/calibre/db/cli/main.py
@@ -8,8 +8,6 @@ import httplib
 import json
 import os
 import sys
-from urllib import urlencode
-from urlparse import urlparse, urlunparse
 
 from calibre import browser, prints
 from calibre.constants import __appname__, __version__, iswindows
@@ -19,6 +17,7 @@ from calibre.utils.config import OptionParser, prefs
 from calibre.utils.localization import localize_user_manual_link
 from calibre.utils.lock import singleinstance
 from calibre.utils.serialize import MSGPACK_MIME
+from polyglot.urllib import urlencode, urlparse, urlunparse
 
 COMMANDS = (
     'list', 'add', 'remove', 'add_format', 'remove_format', 'show_metadata',
diff --git a/src/calibre/db/delete_service.py b/src/calibre/db/delete_service.py
index c33dda1f7c..6698f4680c 100644
--- a/src/calibre/db/delete_service.py
+++ b/src/calibre/db/delete_service.py
@@ -8,11 +8,11 @@ __copyright__ = '2013, Kovid Goyal <kovid at kovidgoyal.net>'
 
 import os, tempfile, shutil, errno, time, atexit
 from threading import Thread
-from Queue import Queue
 
 from calibre.ptempfile import remove_dir
 from calibre.utils.filenames import remove_dir_if_empty
 from calibre.utils.recycle_bin import delete_tree, delete_file
+from polyglot.queue import Queue
 
 
 class DeleteService(Thread):
@@ -159,4 +159,3 @@ def has_jobs():
     if __ds is not None:
         return (not __ds.requests.empty()) or __ds.requests.unfinished_tasks
     return False
-
diff --git a/src/calibre/devices/smart_device_app/driver.py b/src/calibre/devices/smart_device_app/driver.py
index 7d60bf2916..7d52dc76c8 100644
--- a/src/calibre/devices/smart_device_app/driver.py
+++ b/src/calibre/devices/smart_device_app/driver.py
@@ -11,7 +11,6 @@ import socket, select, json, os, traceback, time, sys, random
 import posixpath
 from collections import defaultdict
 import hashlib, threading
-import Queue
 
 from functools import wraps
 from errno import EAGAIN, EINTR
@@ -39,6 +38,7 @@ from calibre.utils.mdns import (publish as publish_zeroconf, unpublish as
         unpublish_zeroconf, get_all_ips)
 from calibre.utils.socket_inheritance import set_socket_inherit
 from polyglot.builtins import unicode_type
+from polyglot import queue
 
 
 def synchronous(tlockname):
@@ -103,7 +103,7 @@ class ConnectionListener(Thread):
                                         {'otherDevice': d.get_gui_name()})
                         self.driver._send_byte_string(device_socket, (b'%d' % len(s)) + s)
                         sock.close()
-                    except Queue.Empty:
+                    except queue.Empty:
                         pass
 
             if getattr(self.driver, 'broadcast_socket', None) is not None:
@@ -148,7 +148,7 @@ class ConnectionListener(Thread):
 
                         try:
                             self.driver.connection_queue.put_nowait(device_socket)
-                        except Queue.Full:
+                        except queue.Full:
                             self._close_socket(device_socket)
                             device_socket = None
                             self.driver._debug('driver is not answering')
@@ -993,7 +993,7 @@ class SMART_DEVICE_APP(DeviceConfig, DevicePlugin):
                     raise
                 except:
                     pass
-            except Queue.Empty:
+            except queue.Empty:
                 self.is_connected = False
             return self if self.is_connected else None
         return None
@@ -1969,7 +1969,7 @@ class SMART_DEVICE_APP(DeviceConfig, DevicePlugin):
                     message = 'attaching port to broadcast socket failed. This is not fatal.'
                     self._debug(message)
 
-            self.connection_queue = Queue.Queue(1)
+            self.connection_queue = queue.Queue(1)
             self.connection_listener = ConnectionListener(self)
             self.connection_listener.start()
         return message
diff --git a/src/calibre/ebooks/comic/input.py b/src/calibre/ebooks/comic/input.py
index a636069fbb..fb6db0d152 100755
--- a/src/calibre/ebooks/comic/input.py
+++ b/src/calibre/ebooks/comic/input.py
@@ -8,7 +8,6 @@ Based on ideas from comiclrf created by FangornUK.
 '''
 
 import os, traceback, time
-from Queue import Empty
 
 from calibre import extract, prints, walk
 from calibre.constants import filesystem_encoding
@@ -17,6 +16,7 @@ from calibre.utils.icu import numeric_sort_key
 from calibre.utils.ipc.server import Server
 from calibre.utils.ipc.job import ParallelJob
 from polyglot.builtins import unicode_type
+from polyglot.queue import Empty
 
 # If the specified screen has either dimension larger than this value, no image
 # rescaling is done (we assume that it is a tablet output profile)
diff --git a/src/calibre/ebooks/conversion/plugins/chm_input.py b/src/calibre/ebooks/conversion/plugins/chm_input.py
index fc0af0552f..01b81bbbec 100644
--- a/src/calibre/ebooks/conversion/plugins/chm_input.py
+++ b/src/calibre/ebooks/conversion/plugins/chm_input.py
@@ -108,7 +108,7 @@ class CHMInput(InputFormatPlugin):
 
     def _create_html_root(self, hhcpath, log, encoding):
         from lxml import html
-        from urllib import unquote as _unquote
+        from polyglot.urllib import unquote as _unquote
         from calibre.ebooks.oeb.base import urlquote
         from calibre.ebooks.chardet import xml_to_unicode
         hhcdata = self._read_file(hhcpath)
diff --git a/src/calibre/ebooks/conversion/plugins/html_input.py b/src/calibre/ebooks/conversion/plugins/html_input.py
index fa5e211e4d..e04b82b221 100644
--- a/src/calibre/ebooks/conversion/plugins/html_input.py
+++ b/src/calibre/ebooks/conversion/plugins/html_input.py
@@ -247,7 +247,7 @@ class HTMLInput(InputFormatPlugin):
         return link, frag
 
     def resource_adder(self, link_, base=None):
-        from urllib import quote
+        from polyglot.urllib import quote
         link, frag = self.link_to_local_path(link_, base=base)
         if link is None:
             return link_
diff --git a/src/calibre/ebooks/conversion/plugins/html_output.py b/src/calibre/ebooks/conversion/plugins/html_output.py
index 4c82974460..15d2f02c07 100644
--- a/src/calibre/ebooks/conversion/plugins/html_output.py
+++ b/src/calibre/ebooks/conversion/plugins/html_output.py
@@ -47,7 +47,7 @@ class HTMLOutput(OutputFormatPlugin):
         Generate table of contents
         '''
         from lxml import etree
-        from urllib import unquote
+        from polyglot.urllib import unquote
 
         from calibre.ebooks.oeb.base import element
         from calibre.utils.cleantext import clean_xml_chars
@@ -86,7 +86,7 @@ class HTMLOutput(OutputFormatPlugin):
         from lxml import etree
         from calibre.utils import zipfile
         from templite import Templite
-        from urllib import unquote
+        from polyglot.urllib import unquote
         from calibre.ebooks.html.meta import EasyMeta
 
         # read template files
diff --git a/src/calibre/ebooks/conversion/plugins/oeb_output.py b/src/calibre/ebooks/conversion/plugins/oeb_output.py
index 72518e264b..82ae031c4d 100644
--- a/src/calibre/ebooks/conversion/plugins/oeb_output.py
+++ b/src/calibre/ebooks/conversion/plugins/oeb_output.py
@@ -21,7 +21,7 @@ class OEBOutput(OutputFormatPlugin):
     recommendations = {('pretty_print', True, OptionRecommendation.HIGH)}
 
     def convert(self, oeb_book, output_path, input_plugin, opts, log):
-        from urllib import unquote
+        from polyglot.urllib import unquote
         from lxml import etree
 
         self.log, self.opts = log, opts
diff --git a/src/calibre/ebooks/docx/writer/links.py b/src/calibre/ebooks/docx/writer/links.py
index 6293be50c5..4e6315d738 100644
--- a/src/calibre/ebooks/docx/writer/links.py
+++ b/src/calibre/ebooks/docx/writer/links.py
@@ -8,9 +8,9 @@ __copyright__ = '2015, Kovid Goyal <kovid at kovidgoyal.net>'
 
 import posixpath, re
 from uuid import uuid4
-from urlparse import urlparse
 
 from calibre.utils.filenames import ascii_text
+from polyglot.urllib import urlparse
 
 
 def start_text(tag, prefix_len=0, top_level=True):
diff --git a/src/calibre/ebooks/html/input.py b/src/calibre/ebooks/html/input.py
index 723fcc3688..6bd6183821 100644
--- a/src/calibre/ebooks/html/input.py
+++ b/src/calibre/ebooks/html/input.py
@@ -13,13 +13,13 @@ Input plugin for HTML or OPF ebooks.
 '''
 
 import os, re, sys,  errno as gerrno
-from urlparse import urlparse, urlunparse
 
 from calibre.ebooks.oeb.base import urlunquote
 from calibre.ebooks.chardet import detect_xml_encoding
 from calibre.constants import iswindows
 from calibre import unicode_path, as_unicode, replace_entities
 from polyglot.builtins import unicode_type
+from polyglot.urllib import urlparse, urlunparse
 
 
 class Link(object):
diff --git a/src/calibre/ebooks/htmlz/oeb2html.py b/src/calibre/ebooks/htmlz/oeb2html.py
index f27a7308d5..ba619d1842 100644
--- a/src/calibre/ebooks/htmlz/oeb2html.py
+++ b/src/calibre/ebooks/htmlz/oeb2html.py
@@ -15,7 +15,6 @@ import re
 
 from functools import partial
 from lxml import html
-from urlparse import urldefrag
 
 from calibre import prepare_string_for_xml
 from calibre.ebooks.oeb.base import (
@@ -23,6 +22,7 @@ from calibre.ebooks.oeb.base import (
 from calibre.ebooks.oeb.stylizer import Stylizer
 from calibre.utils.logging import default_log
 from polyglot.builtins import unicode_type, string_or_bytes
+from polyglot.urllib import urldefrag
 
 SELF_CLOSING_TAGS = {'area', 'base', 'basefont', 'br', 'hr', 'input', 'img', 'link', 'meta'}
 
diff --git a/src/calibre/ebooks/lit/reader.py b/src/calibre/ebooks/lit/reader.py
index b487c673a1..4cef2e9083 100644
--- a/src/calibre/ebooks/lit/reader.py
+++ b/src/calibre/ebooks/lit/reader.py
@@ -9,8 +9,6 @@ __copyright__ = '2008, Kovid Goyal <kovid at kovidgoyal.net> ' \
     'and Marshall T. Vandegrift <llasram@gmail.com>'
 
 import io, struct, os, functools, re
-from urlparse import urldefrag
-from urllib import unquote as urlunquote
 
 from lxml import etree
 
@@ -22,6 +20,7 @@ from calibre.ebooks.oeb.reader import OEBReader
 from calibre.ebooks import DRMError
 from calibre import plugins
 from polyglot.builtins import codepoint_to_chr, unicode_type, string_or_bytes, range
+from polyglot.urllib import unquote as urlunquote, urldefrag
 
 lzx, lxzerror = plugins['lzx']
 msdes, msdeserror = plugins['msdes']
diff --git a/src/calibre/ebooks/lit/writer.py b/src/calibre/ebooks/lit/writer.py
index b5256101b8..ecc69ab748 100644
--- a/src/calibre/ebooks/lit/writer.py
+++ b/src/calibre/ebooks/lit/writer.py
@@ -17,8 +17,6 @@ import copy
 import uuid
 import functools
 import numbers
-from urlparse import urldefrag
-from urllib import unquote as urlunquote
 from lxml import etree
 from calibre.ebooks.lit.reader import DirectoryEntry
 import calibre.ebooks.lit.maps as maps
@@ -33,6 +31,7 @@ from calibre import plugins
 msdes, msdeserror = plugins['msdes']
 import calibre.ebooks.lit.mssha1 as mssha1
 from polyglot.builtins import codepoint_to_chr, unicode_type, string_or_bytes, range
+from polyglot.urllib import urldefrag, unquote
 
 __all__ = ['LitWriter']
 
@@ -521,7 +520,7 @@ class LitWriter(object):
                     media_type = XHTML_MIME
                 elif media_type in OEB_STYLES:
                     media_type = CSS_MIME
-                href = urlunquote(item.href)
+                href = unquote(item.href)
                 item.offset = offset \
                     if state in ('linear', 'nonlinear') else 0
                 data.write(pack('<I', item.offset))
diff --git a/src/calibre/ebooks/lrf/html/convert_from.py b/src/calibre/ebooks/lrf/html/convert_from.py
index 9244ebb686..2021b091eb 100644
--- a/src/calibre/ebooks/lrf/html/convert_from.py
+++ b/src/calibre/ebooks/lrf/html/convert_from.py
@@ -9,8 +9,6 @@ and to Falstaff for pylrs.
 """
 import os, re, sys, copy, glob, tempfile
 from collections import deque
-from urllib import unquote
-from urlparse import urlparse
 from math import ceil, floor
 from functools import partial
 
@@ -37,6 +35,7 @@ from calibre.devices.interface import DevicePlugin as Device
 from calibre.ebooks.lrf.html.color_map import lrs_color
 from calibre.ebooks.chardet import xml_to_unicode
 from polyglot.builtins import unicode_type
+from polyglot.urllib import unquote, urlparse
 
 
 def update_css(ncss, ocss):
diff --git a/src/calibre/ebooks/metadata/__init__.py b/src/calibre/ebooks/metadata/__init__.py
index e6d435b831..f05de87a89 100644
--- a/src/calibre/ebooks/metadata/__init__.py
+++ b/src/calibre/ebooks/metadata/__init__.py
@@ -9,13 +9,11 @@ Provides abstraction for metadata reading.writing from a variety of ebook format
 """
 import os, sys, re
 
-from urlparse import urlparse
-
 from calibre import relpath, guess_type, remove_bracketed_text, prints, force_unicode
-
 from calibre.utils.config_base import tweaks
-
 from polyglot.builtins import codepoint_to_chr, unicode_type
+from polyglot.urllib import quote, unquote, urlparse
+
 
 try:
     _author_pat = re.compile(tweaks['authors_split_regex'])
@@ -205,7 +203,6 @@ class Resource(object):
     '''
 
     def __init__(self, href_or_path, basedir=os.getcwdu(), is_path=True):
-        from urllib import unquote
         self._href = None
         self._basedir = basedir
         self.path = None
@@ -243,7 +240,6 @@ class Resource(object):
         `basedir`: If None, the basedir of this resource is used (see :method:`set_basedir`).
         If this resource has no basedir, then the current working directory is used as the basedir.
         '''
-        from urllib import quote
         if basedir is None:
             if self._basedir:
                 basedir = self._basedir
diff --git a/src/calibre/ebooks/metadata/kdl.py b/src/calibre/ebooks/metadata/kdl.py
index c84eae04fa..66460569cb 100644
--- a/src/calibre/ebooks/metadata/kdl.py
+++ b/src/calibre/ebooks/metadata/kdl.py
@@ -6,7 +6,7 @@ __license__   = 'GPL v3'
 __copyright__ = '2011, Kovid Goyal <kovid@kovidgoyal.net>'
 __docformat__ = 'restructuredtext en'
 
-import re, urllib, urlparse, socket
+import re, socket
 
 from mechanize import URLError
 
@@ -15,6 +15,7 @@ from calibre import browser
 from calibre.ebooks.BeautifulSoup import BeautifulSoup
 from calibre.ebooks.chardet import xml_to_unicode
 from polyglot.builtins import codepoint_to_chr, unicode_type
+from polyglot.urllib import parse_qs, quote_plus
 
 URL = \
 "http://ww2.kdl.org/libcat/WhatsNext.asp?AuthorLastName={0}&AuthorFirstName=&SeriesName=&BookTitle={1}&CategoryID=0&cmdSearch=Search&Search=1&grouping="
@@ -32,7 +33,7 @@ def get_series(title, authors, timeout=60):
     if isinstance(title, unicode_type):
         title = title.encode('utf-8')
 
-    title = urllib.quote_plus(title)
+    title = quote_plus(title)
 
     author = authors[0].strip()
     if not author:
@@ -64,7 +65,7 @@ def get_series(title, authors, timeout=60):
     if a is None:
         return mi
     href = a['href'].partition('?')[-1]
-    data = urlparse.parse_qs(href)
+    data = parse_qs(href)
     series = data.get('SeriesName', [])
     if not series:
         return mi
diff --git a/src/calibre/ebooks/metadata/opf2.py b/src/calibre/ebooks/metadata/opf2.py
index afff15e421..4e5541ff1d 100644
--- a/src/calibre/ebooks/metadata/opf2.py
+++ b/src/calibre/ebooks/metadata/opf2.py
@@ -9,8 +9,6 @@ lxml based OPF parser.
 '''
 
 import re, sys, unittest, functools, os, uuid, glob, io, json, copy
-from urllib import unquote
-from urlparse import urlparse
 
 from lxml import etree
 
@@ -26,6 +24,7 @@ from calibre import prints, guess_type
 from calibre.utils.cleantext import clean_ascii_chars, clean_xml_chars
 from calibre.utils.config import tweaks
 from polyglot.builtins import unicode_type, range
+from polyglot.urllib import unquote, urlparse
 
 pretty_print_opf = False
 
diff --git a/src/calibre/ebooks/metadata/search_internet.py b/src/calibre/ebooks/metadata/search_internet.py
index bcd78d668c..24f54d6990 100644
--- a/src/calibre/ebooks/metadata/search_internet.py
+++ b/src/calibre/ebooks/metadata/search_internet.py
@@ -4,7 +4,7 @@
 
 from __future__ import absolute_import, division, print_function, unicode_literals
 
-from urllib import quote_plus
+from polyglot.urllib import quote_plus
 
 AUTHOR_SEARCHES = {
     'goodreads':
diff --git a/src/calibre/ebooks/metadata/sources/cli.py b/src/calibre/ebooks/metadata/sources/cli.py
index d7d5153cf9..61b250e1db 100644
--- a/src/calibre/ebooks/metadata/sources/cli.py
+++ b/src/calibre/ebooks/metadata/sources/cli.py
@@ -21,6 +21,7 @@ from calibre.ebooks.metadata.sources.base import create_log
 from calibre.ebooks.metadata.sources.identify import identify
 from calibre.ebooks.metadata.sources.covers import download_cover
 from calibre.ebooks.metadata.sources.update import patch_plugins
+from polyglot.builtins import unicode_type
 
 
 def option_parser():
@@ -99,7 +100,7 @@ def main(args=sys.argv):
     log = buf.getvalue()
 
     result = (metadata_to_opf(result) if opts.opf else
-                    type(u'')(result).encode('utf-8'))
+                    unicode_type(result).encode('utf-8'))
 
     if opts.verbose:
         print (log, file=sys.stderr)
diff --git a/src/calibre/ebooks/metadata/sources/identify.py b/src/calibre/ebooks/metadata/sources/identify.py
index 5fc4a5bfb0..44cdba029b 100644
--- a/src/calibre/ebooks/metadata/sources/identify.py
+++ b/src/calibre/ebooks/metadata/sources/identify.py
@@ -27,6 +27,7 @@ from calibre.utils.html2text import html2text
 from calibre.utils.icu import lower
 from calibre.utils.date import UNDEFINED_DATE
 from calibre.utils.formatter import EvalFormatter
+from polyglot.builtins import unicode_type
 
 # Download worker {{{
 
@@ -471,7 +472,7 @@ def identify(log, abort,  # {{{
         for r in presults:
             log('\n\n---')
             try:
-                log(type(u'')(r))
+                log(unicode_type(r))
             except TypeError:
                 log(repr(r))
         if plog:
diff --git a/src/calibre/ebooks/metadata/sources/test.py b/src/calibre/ebooks/metadata/sources/test.py
index fec33ffeab..fcd4df3a42 100644
--- a/src/calibre/ebooks/metadata/sources/test.py
+++ b/src/calibre/ebooks/metadata/sources/test.py
@@ -8,7 +8,6 @@ __copyright__ = '2011, Kovid Goyal <kovid@kovidgoyal.net>'
 __docformat__ = 'restructuredtext en'
 
 import os, tempfile, time
-from Queue import Queue, Empty
 from threading import Event
 
 from calibre.customize.ui import all_metadata_plugins
@@ -16,6 +15,7 @@ from calibre import prints, sanitize_file_name2
 from calibre.ebooks.metadata import check_isbn
 from calibre.ebooks.metadata.sources.base import create_log, get_cached_cover_urls
 from calibre.ebooks.metadata.sources.prefs import msprefs
+from polyglot.queue import Queue, Empty
 
 
 def isbn_test(isbn):
diff --git a/src/calibre/ebooks/metadata/sources/worker.py b/src/calibre/ebooks/metadata/sources/worker.py
index b8fb28d8e2..436d7014eb 100644
--- a/src/calibre/ebooks/metadata/sources/worker.py
+++ b/src/calibre/ebooks/metadata/sources/worker.py
@@ -6,7 +6,6 @@ from __future__ import absolute_import, division, print_function, unicode_litera
 import os
 from collections import Counter
 from io import BytesIO
-from Queue import Empty, Queue
 from threading import Event, Thread
 
 from calibre.customize.ui import metadata_plugins
@@ -18,6 +17,7 @@ from calibre.ebooks.metadata.sources.identify import identify, msprefs
 from calibre.ebooks.metadata.sources.update import patch_plugins
 from calibre.utils.date import as_utc
 from calibre.utils.logging import GUILog
+from polyglot.queue import Empty, Queue
 
 
 def merge_result(oldmi, newmi, ensure_fields=None):
diff --git a/src/calibre/ebooks/metadata/toc.py b/src/calibre/ebooks/metadata/toc.py
index 0894ab6202..2448d9ca8b 100644
--- a/src/calibre/ebooks/metadata/toc.py
+++ b/src/calibre/ebooks/metadata/toc.py
@@ -4,8 +4,6 @@ __license__   = 'GPL v3'
 __copyright__ = '2010, Kovid Goyal <kovid at kovidgoyal.net>'
 
 import os, glob, re, functools
-from urlparse import urlparse
-from urllib import unquote
 from collections import Counter
 
 from lxml import etree
@@ -16,6 +14,7 @@ from calibre.ebooks.BeautifulSoup import BeautifulSoup
 from calibre.ebooks.chardet import xml_to_unicode
 from calibre.utils.cleantext import clean_xml_chars
 from polyglot.builtins import unicode_type
+from polyglot.urllib import unquote, urlparse
 
 NCX_NS = "http://www.daisy.org/z3986/2005/ncx/"
 CALIBRE_NS = "http://calibre.kovidgoyal.net/2009/metadata"
diff --git a/src/calibre/ebooks/mobi/reader/mobi8.py b/src/calibre/ebooks/mobi/reader/mobi8.py
index 7d4aca3cc9..23e7c6d46b 100644
--- a/src/calibre/ebooks/mobi/reader/mobi8.py
+++ b/src/calibre/ebooks/mobi/reader/mobi8.py
@@ -10,7 +10,6 @@ __docformat__ = 'restructuredtext en'
 import struct, re, os
 from collections import namedtuple
 from itertools import repeat, izip
-from urlparse import urldefrag
 from uuid import uuid4
 
 from lxml import etree
@@ -26,6 +25,7 @@ from calibre.ebooks.mobi.utils import read_font_record
 from calibre.ebooks.oeb.parse_utils import parse_html
 from calibre.ebooks.oeb.base import XPath, XHTML, xml2text
 from polyglot.builtins import range
+from polyglot.urllib import urldefrag
 
 Part = namedtuple('Part',
     'num type filename start end aid')
diff --git a/src/calibre/ebooks/mobi/writer2/serializer.py b/src/calibre/ebooks/mobi/writer2/serializer.py
index 65343c3a6d..756d2d7c6e 100644
--- a/src/calibre/ebooks/mobi/writer2/serializer.py
+++ b/src/calibre/ebooks/mobi/writer2/serializer.py
@@ -11,7 +11,6 @@ import re
 import unicodedata
 from collections import defaultdict
 from io import BytesIO
-from urlparse import urldefrag
 
 from calibre.ebooks.mobi.mobiml import MBP_NS
 from calibre.ebooks.mobi.utils import is_guide_ref_start
@@ -19,6 +18,7 @@ from calibre.ebooks.oeb.base import (
     OEB_DOCS, XHTML, XHTML_NS, XML_NS, namespace, prefixname, urlnormalize
 )
 from polyglot.builtins import unicode_type, string_or_bytes
+from polyglot.urllib import urldefrag
 
 
 class Buf(BytesIO):
diff --git a/src/calibre/ebooks/oeb/base.py b/src/calibre/ebooks/oeb/base.py
index db678847de..b6186b4fed 100644
--- a/src/calibre/ebooks/oeb/base.py
+++ b/src/calibre/ebooks/oeb/base.py
@@ -9,8 +9,6 @@ __docformat__ = 'restructuredtext en'
 import os, re, logging
 from collections import defaultdict
 from itertools import count
-from urlparse import urldefrag, urlparse, urlunparse, urljoin
-from urllib import unquote
 
 from lxml import etree, html
 from calibre.constants import filesystem_encoding, __version__, ispy3
@@ -23,6 +21,7 @@ from calibre.ebooks.oeb.parse_utils import (barename, XHTML_NS, RECOVER_PARSER,
 from calibre.utils.cleantext import clean_xml_chars
 from calibre.utils.short_uuid import uuid4
 from polyglot.builtins import unicode_type, string_or_bytes, range
+from polyglot.urllib import unquote, urldefrag, urljoin, urlparse, urlunparse
 
 XML_NS       = 'http://www.w3.org/XML/1998/namespace'
 OEB_DOC_NS   = 'http://openebook.org/namespaces/oeb-document/1.0/'
diff --git a/src/calibre/ebooks/oeb/display/test-cfi/run_rapydscript.py b/src/calibre/ebooks/oeb/display/test-cfi/run_rapydscript.py
index 887708f454..0ca3698b23 100644
--- a/src/calibre/ebooks/oeb/display/test-cfi/run_rapydscript.py
+++ b/src/calibre/ebooks/oeb/display/test-cfi/run_rapydscript.py
@@ -8,9 +8,10 @@ __copyright__ = '2011, Kovid Goyal <kovid@kovidgoyal.net>'
 __docformat__ = 'restructuredtext en'
 
 import os, shutil, tempfile
-import SimpleHTTPServer
 import SocketServer
 
+from polyglot.http_server import SimpleHTTPRequestHandler
+
 
 def run_devel_server():
     base = os.path.dirname(os.path.abspath(__file__))
@@ -27,7 +28,7 @@ def run_devel_server():
     with lopen('cfi-test.pyj', 'rb') as f, lopen('cfi-test.js', 'wb') as js:
         js.write(compile_pyj(f.read()).encode('utf-8'))
     PORT = 8000
-    Handler = SimpleHTTPServer.SimpleHTTPRequestHandler
+    Handler = SimpleHTTPRequestHandler
     httpd = SocketServer.TCPServer(("", PORT), Handler)
     print('Serving CFI test at http://localhost:%d' % PORT)
     try:
@@ -37,4 +38,3 @@ def run_devel_server():
 
 if __name__ == '__main__':
     run_devel_server()
-
diff --git a/src/calibre/ebooks/oeb/polish/check/links.py b/src/calibre/ebooks/oeb/polish/check/links.py
index 3656aea5fe..b581bc6418 100644
--- a/src/calibre/ebooks/oeb/polish/check/links.py
+++ b/src/calibre/ebooks/oeb/polish/check/links.py
@@ -8,10 +8,7 @@ __copyright__ = '2013, Kovid Goyal <kovid at kovidgoyal.net>'
 
 import os
 from collections import defaultdict
-from urlparse import urlparse
-from polyglot.builtins import map
 from threading import Thread
-from Queue import Queue, Empty
 
 from calibre import browser
 from calibre.ebooks.oeb.base import OEB_DOCS, OEB_STYLES, urlunquote, XHTML_MIME
@@ -21,7 +18,9 @@ from calibre.ebooks.oeb.polish.replace import remove_links_to
 from calibre.ebooks.oeb.polish.cover import get_raster_cover_name
 from calibre.ebooks.oeb.polish.utils import guess_type, actual_case_for_name, corrected_case_for_name
 from calibre.ebooks.oeb.polish.check.base import BaseError, WARN, INFO
-from polyglot.builtins import range
+from polyglot.builtins import map, range
+from polyglot.urllib import urlparse
+from polyglot.queue import Queue, Empty
 
 
 class BadLink(BaseError):
diff --git a/src/calibre/ebooks/oeb/polish/container.py b/src/calibre/ebooks/oeb/polish/container.py
index 0216a74f27..da845d971f 100644
--- a/src/calibre/ebooks/oeb/polish/container.py
+++ b/src/calibre/ebooks/oeb/polish/container.py
@@ -17,7 +17,6 @@ from collections import defaultdict
 from polyglot.builtins import unicode_type, zip
 from io import BytesIO
 from itertools import count
-from urlparse import urlparse
 
 from css_parser import getUrls, replaceUrls
 from lxml import etree
@@ -55,6 +54,7 @@ from calibre.utils.filenames import hardlink_file, nlinks_file
 from calibre.utils.ipc.simple_worker import WorkerError, fork_job
 from calibre.utils.logging import default_log
 from calibre.utils.zipfile import ZipFile
+from polyglot.urllib import urlparse
 
 exists, join, relpath = os.path.exists, os.path.join, os.path.relpath
 
diff --git a/src/calibre/ebooks/oeb/polish/download.py b/src/calibre/ebooks/oeb/polish/download.py
index 574f63fadf..0211b0ff0d 100644
--- a/src/calibre/ebooks/oeb/polish/download.py
+++ b/src/calibre/ebooks/oeb/polish/download.py
@@ -17,14 +17,13 @@ from functools import partial
 from io import BytesIO
 from multiprocessing.dummy import Pool
 from tempfile import NamedTemporaryFile
-from urllib2 import urlopen
-from urlparse import urlparse
 
 from calibre import as_unicode, sanitize_file_name2
 from calibre.ebooks.oeb.base import OEB_DOCS, OEB_STYLES, barename, iterlinks
 from calibre.ebooks.oeb.polish.utils import guess_type
 from calibre.ptempfile import TemporaryDirectory
 from calibre.web import get_download_filename_from_response
+from polyglot.urllib import urlopen, urlparse
 
 
 def is_external(url):
diff --git a/src/calibre/ebooks/oeb/polish/images.py b/src/calibre/ebooks/oeb/polish/images.py
index 8ae9f9c413..680fb47af0 100644
--- a/src/calibre/ebooks/oeb/polish/images.py
+++ b/src/calibre/ebooks/oeb/polish/images.py
@@ -7,10 +7,10 @@ from __future__ import (unicode_literals, division, absolute_import,
 import os
 from functools import partial
 from threading import Thread, Event
-from Queue import Queue, Empty
 
 from calibre import detect_ncpus, human_readable, force_unicode, filesystem_encoding
 from polyglot.builtins import range
+from polyglot.queue import Queue, Empty
 
 
 class Worker(Thread):
diff --git a/src/calibre/ebooks/oeb/polish/replace.py b/src/calibre/ebooks/oeb/polish/replace.py
index 4f0ec017e9..a04623404c 100644
--- a/src/calibre/ebooks/oeb/polish/replace.py
+++ b/src/calibre/ebooks/oeb/polish/replace.py
@@ -10,13 +10,13 @@ __docformat__ = 'restructuredtext en'
 import codecs, shutil, os, posixpath
 from polyglot.builtins import map
 from functools import partial
-from urlparse import urlparse, urlunparse
 from collections import Counter, defaultdict
 
 from calibre import sanitize_file_name_unicode
 from calibre.ebooks.chardet import strip_encoding_declarations
 from calibre.ebooks.oeb.polish.css import iter_declarations, remove_property_value
 from calibre.ebooks.oeb.polish.utils import extract
+from polyglot.urllib import urlparse, urlunparse
 
 
 class LinkReplacer(object):
diff --git a/src/calibre/ebooks/oeb/polish/split.py b/src/calibre/ebooks/oeb/polish/split.py
index 7b215b43e2..f06e32c37d 100644
--- a/src/calibre/ebooks/oeb/polish/split.py
+++ b/src/calibre/ebooks/oeb/polish/split.py
@@ -8,12 +8,12 @@ __copyright__ = '2013, Kovid Goyal <kovid at kovidgoyal.net>'
 
 import copy, os, re
 from polyglot.builtins import map, string_or_bytes, range
-from urlparse import urlparse
 
 from calibre.ebooks.oeb.base import barename, XPNSMAP, XPath, OPF, XHTML, OEB_DOCS
 from calibre.ebooks.oeb.polish.errors import MalformedMarkup
 from calibre.ebooks.oeb.polish.toc import node_from_loc
 from calibre.ebooks.oeb.polish.replace import LinkRebaser
+from polyglot.urllib import urlparse
 
 
 class AbortError(ValueError):
diff --git a/src/calibre/ebooks/oeb/polish/toc.py b/src/calibre/ebooks/oeb/polish/toc.py
index b2c39702f0..bcf274cf03 100644
--- a/src/calibre/ebooks/oeb/polish/toc.py
+++ b/src/calibre/ebooks/oeb/polish/toc.py
@@ -8,7 +8,6 @@ __copyright__ = '2013, Kovid Goyal <kovid at kovidgoyal.net>'
 __docformat__ = 'restructuredtext en'
 
 import re
-from urlparse import urlparse
 from collections import Counter, OrderedDict
 from functools import partial
 from polyglot.builtins import map, unicode_type
@@ -26,6 +25,7 @@ from calibre.ebooks.oeb.polish.opf import set_guide_item, get_book_language
 from calibre.ebooks.oeb.polish.pretty import pretty_html_tree
 from calibre.translations.dynamic import translate
 from calibre.utils.localization import get_lang, canonicalize_lang, lang_as_iso639_1
+from polyglot.urllib import urlparse
 
 ns = etree.FunctionNamespace('calibre_xpath_extensions')
 ns.prefix = 'calibre'
diff --git a/src/calibre/ebooks/oeb/reader.py b/src/calibre/ebooks/oeb/reader.py
index 727e0199b4..4ba114924a 100644
--- a/src/calibre/ebooks/oeb/reader.py
+++ b/src/calibre/ebooks/oeb/reader.py
@@ -9,8 +9,6 @@ __copyright__ = '2008, Marshall T. Vandegrift <llasram@gmail.com>'
 
 import sys, os, uuid, copy, re, io
 from itertools import izip
-from urlparse import urldefrag, urlparse
-from urllib import unquote as urlunquote
 from collections import defaultdict
 
 from lxml import etree
@@ -31,6 +29,7 @@ from calibre.ptempfile import TemporaryDirectory
 from calibre.constants import __appname__, __version__
 from calibre import guess_type, xml_replace_entities
 from polyglot.builtins import unicode_type
+from polyglot.urllib import unquote, urldefrag, urlparse
 
 __all__ = ['OEBReader']
 
@@ -632,7 +631,7 @@ class OEBReader(object):
         with TemporaryDirectory('_html_cover') as tdir:
             writer = OEBWriter()
             writer(self.oeb, tdir)
-            path = os.path.join(tdir, urlunquote(hcover.href))
+            path = os.path.join(tdir, unquote(hcover.href))
             data = render_html_svg_workaround(path, self.logger)
             if not data:
                 data = ''
diff --git a/src/calibre/ebooks/oeb/transforms/cover.py b/src/calibre/ebooks/oeb/transforms/cover.py
index 3165a4ecd3..b3c9ed8246 100644
--- a/src/calibre/ebooks/oeb/transforms/cover.py
+++ b/src/calibre/ebooks/oeb/transforms/cover.py
@@ -6,12 +6,12 @@ __copyright__ = '2010, Kovid Goyal <kovid@kovidgoyal.net>'
 __docformat__ = 'restructuredtext en'
 
 import textwrap
-from urllib import unquote
 
 from lxml import etree
 from calibre import guess_type
 from calibre.utils.imghdr import identify
 from polyglot.builtins import unicode_type
+from polyglot.urllib import unquote
 
 
 class CoverManager(object):
diff --git a/src/calibre/ebooks/oeb/transforms/filenames.py b/src/calibre/ebooks/oeb/transforms/filenames.py
index d7c672c782..a7959e70fc 100644
--- a/src/calibre/ebooks/oeb/transforms/filenames.py
+++ b/src/calibre/ebooks/oeb/transforms/filenames.py
@@ -6,11 +6,11 @@ __copyright__ = '2010, Kovid Goyal <kovid@kovidgoyal.net>'
 __docformat__ = 'restructuredtext en'
 
 import posixpath
-from urlparse import urldefrag, urlparse
 
 from lxml import etree
 
 from calibre.ebooks.oeb.base import rewrite_links, urlnormalize
+from polyglot.urllib import urldefrag, urlparse
 
 
 class RenameFiles(object):  # {{{
diff --git a/src/calibre/ebooks/oeb/transforms/rasterize.py b/src/calibre/ebooks/oeb/transforms/rasterize.py
index 7b88e77172..35a96df60f 100644
--- a/src/calibre/ebooks/oeb/transforms/rasterize.py
+++ b/src/calibre/ebooks/oeb/transforms/rasterize.py
@@ -7,7 +7,6 @@ __license__   = 'GPL v3'
 __copyright__ = '2008, Marshall T. Vandegrift <llasram@gmail.com>'
 
 import os, re
-from urlparse import urldefrag
 
 from PyQt5.Qt import (
     Qt, QByteArray, QBuffer, QIODevice, QColor, QImage, QPainter, QSvgRenderer)
@@ -19,6 +18,7 @@ from calibre.ebooks.oeb.stylizer import Stylizer
 from calibre.ptempfile import PersistentTemporaryFile
 from calibre.utils.imghdr import what
 from polyglot.builtins import unicode_type
+from polyglot.urllib import urldefrag
 
 IMAGE_TAGS = {XHTML('img'), XHTML('object')}
 KEEP_ATTRS = {'class', 'style', 'width', 'height', 'align'}
diff --git a/src/calibre/ebooks/oeb/transforms/structure.py b/src/calibre/ebooks/oeb/transforms/structure.py
index bf5079b8d0..7d11f887b1 100644
--- a/src/calibre/ebooks/oeb/transforms/structure.py
+++ b/src/calibre/ebooks/oeb/transforms/structure.py
@@ -9,12 +9,12 @@ __docformat__ = 'restructuredtext en'
 import re, uuid
 
 from lxml import etree
-from urlparse import urlparse
 from collections import OrderedDict, Counter
 
 from calibre.ebooks.oeb.base import XPNSMAP, TOC, XHTML, xml2text, barename
 from calibre.ebooks import ConversionError
 from polyglot.builtins import unicode_type
+from polyglot.urllib import urlparse
 
 
 def XPath(x):
diff --git a/src/calibre/ebooks/oeb/transforms/trimmanifest.py b/src/calibre/ebooks/oeb/transforms/trimmanifest.py
index c1b71f0951..c9d9b04b6e 100644
--- a/src/calibre/ebooks/oeb/transforms/trimmanifest.py
+++ b/src/calibre/ebooks/oeb/transforms/trimmanifest.py
@@ -6,10 +6,9 @@ from __future__ import with_statement
 __license__   = 'GPL v3'
 __copyright__ = '2008, Marshall T. Vandegrift <llasram@gmail.com>'
 
-from urlparse import urldefrag
-
 from calibre.ebooks.oeb.base import CSS_MIME, OEB_DOCS
 from calibre.ebooks.oeb.base import urlnormalize, iterlinks
+from polyglot.urllib import urldefrag
 
 
 class ManifestTrimmer(object):
diff --git a/src/calibre/ebooks/pdf/render/links.py b/src/calibre/ebooks/pdf/render/links.py
index 70a5fd88a3..bc3751de65 100644
--- a/src/calibre/ebooks/pdf/render/links.py
+++ b/src/calibre/ebooks/pdf/render/links.py
@@ -8,10 +8,9 @@ __copyright__ = '2012, Kovid Goyal <kovid at kovidgoyal.net>'
 __docformat__ = 'restructuredtext en'
 
 import os
-from urlparse import urlparse
-from urllib2 import unquote
 
 from calibre.ebooks.pdf.render.common import Array, Name, Dictionary, String, UTF16String, current_log
+from polyglot.urllib import unquote, urlparse
 
 
 class Destination(Array):
diff --git a/src/calibre/ebooks/rb/reader.py b/src/calibre/ebooks/rb/reader.py
index 61d6db81f9..da5330c7f1 100644
--- a/src/calibre/ebooks/rb/reader.py
+++ b/src/calibre/ebooks/rb/reader.py
@@ -7,7 +7,6 @@ __docformat__ = 'restructuredtext en'
 import os
 import struct
 import zlib
-from urllib import unquote as urlunquote
 
 from calibre import CurrentDir
 from calibre.ebooks.rb import HEADER
@@ -15,6 +14,7 @@ from calibre.ebooks.rb import RocketBookError
 from calibre.ebooks.metadata.rb import get_metadata
 from calibre.ebooks.metadata.opf2 import OPFCreator
 from polyglot.builtins import range
+from polyglot.urllib import unquote
 
 
 class RBToc(list):
@@ -64,7 +64,7 @@ class Reader(object):
 
         toc = RBToc()
         for i in range(pages):
-            name = urlunquote(self.stream.read(32).strip('\x00'))
+            name = unquote(self.stream.read(32).strip('\x00'))
             size, offset, flags = self.read_i32(), self.read_i32(), self.read_i32()
             toc.append(RBToc.Item(name=name, size=size, offset=offset, flags=flags))
 
diff --git a/src/calibre/ebooks/textile/functions.py b/src/calibre/ebooks/textile/functions.py
index 8c6d5d406e..a6bfca0488 100755
--- a/src/calibre/ebooks/textile/functions.py
+++ b/src/calibre/ebooks/textile/functions.py
@@ -62,9 +62,9 @@ POSSIBILITY OF SUCH DAMAGE.
 
 import re
 import uuid
-from urlparse import urlparse
 
 from calibre.utils.smartypants import smartyPants
+from polyglot.urllib import urlopen, urlparse
 
 
 def _normalize_newlines(string):
@@ -95,14 +95,9 @@ def getimagesize(url):
         except ImportError:
             return None
 
-    try:
-        import urllib2
-    except ImportError:
-        return None
-
     try:
         p = ImageFile.Parser()
-        f = urllib2.urlopen(url)
+        f = urlopen(url)
         while True:
             s = f.read(1024)
             if not s:
diff --git a/src/calibre/gui2/__init__.py b/src/calibre/gui2/__init__.py
index 56fbb4e074..d16d949c43 100644
--- a/src/calibre/gui2/__init__.py
+++ b/src/calibre/gui2/__init__.py
@@ -3,7 +3,6 @@ __copyright__ = '2008, Kovid Goyal <kovid at kovidgoyal.net>'
 """ The GUI """
 import glob
 import os
-import Queue
 import signal
 import sys
 import threading
@@ -36,6 +35,7 @@ from calibre.utils.date import UNDEFINED_DATE
 from calibre.utils.file_type_icons import EXT_MAP
 from calibre.utils.localization import get_lang
 from polyglot.builtins import unicode_type, string_or_bytes, range
+from polyglot import queue
 
 try:
     NO_URL_FORMATTING = QUrl.None_
@@ -502,7 +502,7 @@ class FunctionDispatcher(QObject):
         if not queued:
             typ = Qt.AutoConnection if queued is None else Qt.DirectConnection
         self.dispatch_signal.connect(self.dispatch, type=typ)
-        self.q = Queue.Queue()
+        self.q = queue.Queue()
         self.lock = threading.Lock()
 
     def __call__(self, *args, **kwargs):
diff --git a/src/calibre/gui2/add.py b/src/calibre/gui2/add.py
index 482b735745..7aa6130644 100644
--- a/src/calibre/gui2/add.py
+++ b/src/calibre/gui2/add.py
@@ -9,7 +9,6 @@ __copyright__ = '2014, Kovid Goyal <kovid at kovidgoyal.net>'
 import shutil, os, weakref, traceback, tempfile, time
 from threading import Thread
 from collections import OrderedDict
-from Queue import Empty
 from io import BytesIO
 from polyglot.builtins import map, unicode_type, string_or_bytes
 
@@ -30,6 +29,7 @@ from calibre.ptempfile import PersistentTemporaryDirectory
 from calibre.utils import join_with_timeout
 from calibre.utils.config import prefs
 from calibre.utils.ipc.pool import Pool, Failure
+from polyglot.queue import Empty
 
 
 def validate_source(source, parent=None):  # {{{
diff --git a/src/calibre/gui2/device.py b/src/calibre/gui2/device.py
index 456a0dea3b..7414e4102f 100644
--- a/src/calibre/gui2/device.py
+++ b/src/calibre/gui2/device.py
@@ -3,7 +3,7 @@ __license__   = 'GPL v3'
 __copyright__ = '2008, Kovid Goyal <kovid at kovidgoyal.net>'
 
 # Imports {{{
-import os, traceback, Queue, time, io, re, sys, weakref
+import os, traceback, time, io, re, sys, weakref
 from threading import Thread, Event
 
 from PyQt5.Qt import (
@@ -35,6 +35,7 @@ from calibre.utils.img import scale_image
 from calibre.library.save_to_disk import find_plugboard
 from calibre.ptempfile import PersistentTemporaryFile, force_unicode as filename_to_unicode
 from polyglot.builtins import unicode_type, string_or_bytes
+from polyglot import queue
 # }}}
 
 
@@ -153,8 +154,8 @@ class DeviceManager(Thread):  # {{{
         self.sleep_time     = sleep_time
         self.connected_slot = connected_slot
         self.allow_connect_slot = allow_connect_slot
-        self.jobs           = Queue.Queue(0)
-        self.job_steps      = Queue.Queue(0)
+        self.jobs           = queue.Queue(0)
+        self.job_steps      = queue.Queue(0)
         self.keep_going     = True
         self.job_manager    = job_manager
         self.reported_errors = set([])
@@ -163,7 +164,7 @@ class DeviceManager(Thread):  # {{{
         self.connected_device = None
         self.connected_device_kind = None
         self.ejected_devices  = set([])
-        self.mount_connection_requests = Queue.Queue(0)
+        self.mount_connection_requests = queue.Queue(0)
         self.open_feedback_slot = open_feedback_slot
         self.open_feedback_only_once_seen = set()
         self.after_callback_feedback_slot = after_callback_feedback_slot
@@ -241,7 +242,7 @@ class DeviceManager(Thread):  # {{{
             try:
                 job = self.jobs.get_nowait()
                 job.abort(Exception(_('Device no longer connected.')))
-            except Queue.Empty:
+            except queue.Empty:
                 break
         try:
             self.connected_device.post_yank_cleanup()
@@ -358,13 +359,13 @@ class DeviceManager(Thread):  # {{{
         if not self.job_steps.empty():
             try:
                 return self.job_steps.get_nowait()
-            except Queue.Empty:
+            except queue.Empty:
                 pass
 
         if not self.jobs.empty():
             try:
                 return self.jobs.get_nowait()
-            except Queue.Empty:
+            except queue.Empty:
                 pass
 
     def run_startup(self, dev):
@@ -391,7 +392,7 @@ class DeviceManager(Thread):  # {{{
                 try:
                     (kls,device_kind, folder_path) = \
                                 self.mount_connection_requests.get_nowait()
-                except Queue.Empty:
+                except queue.Empty:
                     break
             if kls is not None:
                 try:
diff --git a/src/calibre/gui2/dnd.py b/src/calibre/gui2/dnd.py
index 59dd40f5e4..2b6201792f 100644
--- a/src/calibre/gui2/dnd.py
+++ b/src/calibre/gui2/dnd.py
@@ -7,10 +7,8 @@ __license__   = 'GPL v3'
 __copyright__ = '2011, Kovid Goyal <kovid@kovidgoyal.net>'
 __docformat__ = 'restructuredtext en'
 
-import posixpath, os, urllib, re
-from urlparse import urlparse
+import posixpath, os, re
 from threading import Thread
-from Queue import Queue, Empty
 
 from PyQt5.Qt import QPixmap, Qt, QDialog, QLabel, QVBoxLayout, \
         QDialogButtonBox, QProgressBar, QTimer, QUrl, QImageReader
@@ -21,6 +19,8 @@ from calibre import browser, as_unicode, prints
 from calibre.gui2 import error_dialog
 from calibre.utils.imghdr import what
 from polyglot.builtins import unicode_type
+from polyglot.urllib import unquote, urlparse
+from polyglot.queue import Queue, Empty
 
 
 def image_extensions():
@@ -162,7 +162,7 @@ def path_from_qurl(qurl):
     raw = bytes(qurl.toEncoded(
         QUrl.PreferLocalFile | QUrl.RemoveScheme | QUrl.RemovePassword | QUrl.RemoveUserInfo |
         QUrl.RemovePort | QUrl.RemoveAuthority | QUrl.RemoveQuery | QUrl.RemoveFragment))
-    ans = urllib.unquote(raw).decode('utf-8', 'replace')
+    ans = unquote(raw).decode('utf-8', 'replace')
     if iswindows and ans.startswith('/'):
         ans = ans[1:]
     return ans
@@ -232,7 +232,7 @@ def dnd_get_image(md, image_exts=None):
     paths = [path_from_qurl(u) for u in urls]
     # First look for a local file
     images = [xi for xi in paths if
-            posixpath.splitext(urllib.unquote(xi))[1][1:].lower() in
+            posixpath.splitext(unquote(xi))[1][1:].lower() in
             image_exts]
     images = [xi for xi in images if os.path.exists(xi)]
     p = QPixmap()
@@ -278,7 +278,7 @@ def dnd_get_files(md, exts, allow_all_extensions=False, filter_exts=()):
         if allow_all_extensions and ext and ext not in filter_exts:
             return True
         return ext in exts and ext not in filter_exts
-    local_files = [p for p in local_files if is_ok(urllib.unquote(p))]
+    local_files = [p for p in local_files if is_ok(unquote(p))]
     local_files = [x for x in local_files if os.path.exists(x)]
     if local_files:
         return local_files, None
diff --git a/src/calibre/gui2/icon_theme.py b/src/calibre/gui2/icon_theme.py
index 95fc1dcaca..495a5c2969 100644
--- a/src/calibre/gui2/icon_theme.py
+++ b/src/calibre/gui2/icon_theme.py
@@ -10,7 +10,6 @@ import os, errno, json, importlib, math, httplib, bz2, shutil, sys
 from itertools import count
 from io import BytesIO
 from polyglot.builtins import map
-from Queue import Queue, Empty
 from threading import Thread, Event
 from multiprocessing.pool import ThreadPool
 
@@ -39,6 +38,7 @@ from calibre.utils.img import image_from_data, Canvas, optimize_png, optimize_jp
 from calibre.utils.zipfile import ZipFile, ZIP_STORED
 from calibre.utils.filenames import atomic_rename
 from lzma.xz import compress, decompress
+from polyglot.queue import Queue, Empty
 
 IMAGE_EXTENSIONS = {'png', 'jpg', 'jpeg'}
 THEME_COVER = 'icon-theme-cover.jpg'
diff --git a/src/calibre/gui2/jobs.py b/src/calibre/gui2/jobs.py
index 59b6e74be1..8f835be45b 100644
--- a/src/calibre/gui2/jobs.py
+++ b/src/calibre/gui2/jobs.py
@@ -8,7 +8,6 @@ Job management.
 '''
 
 import re, time
-from Queue import Empty, Queue
 
 from PyQt5.Qt import (QAbstractTableModel, QModelIndex, Qt, QPainter,
     QTimer, pyqtSignal, QIcon, QDialog, QAbstractItemDelegate, QApplication,
@@ -31,6 +30,7 @@ from calibre.gui2.widgets2 import Dialog
 from calibre.utils.search_query_parser import SearchQueryParser, ParseException
 from calibre.utils.icu import lower
 from polyglot.builtins import unicode_type, range
+from polyglot.queue import Empty, Queue
 
 
 class AdaptSQP(SearchQueryParser):
diff --git a/src/calibre/gui2/library/alternate_views.py b/src/calibre/gui2/library/alternate_views.py
index 1f11a5d84c..bab59f60d1 100644
--- a/src/calibre/gui2/library/alternate_views.py
+++ b/src/calibre/gui2/library/alternate_views.py
@@ -9,7 +9,6 @@ __copyright__ = '2013, Kovid Goyal <kovid at kovidgoyal.net>'
 import itertools, operator, os, math
 from types import MethodType
 from threading import Event, Thread
-from Queue import LifoQueue
 from functools import wraps, partial
 from textwrap import wrap
 
@@ -31,6 +30,7 @@ from calibre.gui2.gestures import GestureManager
 from calibre.gui2.library.caches import CoverCache, ThumbnailCache
 from calibre.utils.config import prefs, tweaks
 from polyglot.builtins import unicode_type, range
+from polyglot.queue import LifoQueue
 
 CM_TO_INCH = 0.393701
 CACHE_FORMAT = 'PPM'
diff --git a/src/calibre/gui2/metadata/single_download.py b/src/calibre/gui2/metadata/single_download.py
index 56c2c3f641..fe51133577 100644
--- a/src/calibre/gui2/metadata/single_download.py
+++ b/src/calibre/gui2/metadata/single_download.py
@@ -13,7 +13,6 @@ DEBUG_DIALOG = False
 import os, time
 from threading import Thread, Event
 from operator import attrgetter
-from Queue import Queue, Empty
 from io import BytesIO
 
 from PyQt5.Qt import (
@@ -41,6 +40,7 @@ from calibre.utils.config import tweaks
 from calibre.utils.ipc.simple_worker import fork_job, WorkerError
 from calibre.ptempfile import TemporaryDirectory
 from polyglot.builtins import unicode_type, range
+from polyglot.queue import Queue, Empty
 # }}}
 
 
diff --git a/src/calibre/gui2/qt_file_dialogs.py b/src/calibre/gui2/qt_file_dialogs.py
index 11223c12e3..b1f2114b16 100644
--- a/src/calibre/gui2/qt_file_dialogs.py
+++ b/src/calibre/gui2/qt_file_dialogs.py
@@ -5,13 +5,13 @@
 from __future__ import absolute_import, division, print_function, unicode_literals
 
 import os
-from urllib import unquote
 
 from PyQt5.Qt import QFileDialog, QObject
 
 from calibre.gui2.linux_file_dialogs import dialog_name, image_extensions
 from calibre.utils.filenames import expanduser
 from polyglot.builtins import unicode_type, string_or_bytes
+from polyglot.urllib import unquote
 
 
 def select_initial_dir(q):
diff --git a/src/calibre/gui2/save.py b/src/calibre/gui2/save.py
index 1c268c7fe7..d7a1553496 100644
--- a/src/calibre/gui2/save.py
+++ b/src/calibre/gui2/save.py
@@ -9,7 +9,6 @@ __copyright__ = '2014, Kovid Goyal <kovid at kovidgoyal.net>'
 import traceback, errno, os, time, shutil
 from collections import namedtuple, defaultdict
 from tempfile import SpooledTemporaryFile
-from Queue import Empty
 
 from PyQt5.Qt import QObject, Qt, pyqtSignal
 
@@ -26,6 +25,7 @@ from calibre.utils.formatter_functions import load_user_template_functions
 from calibre.utils.ipc.pool import Pool, Failure
 from calibre.library.save_to_disk import sanitize_args, get_path_components, find_plugboard, plugboard_save_to_disk_value
 from polyglot.builtins import unicode_type
+from polyglot.queue import Empty
 
 BookId = namedtuple('BookId', 'title authors')
 
diff --git a/src/calibre/gui2/store/loader.py b/src/calibre/gui2/store/loader.py
index e6d9b5252c..02be4abdda 100644
--- a/src/calibre/gui2/store/loader.py
+++ b/src/calibre/gui2/store/loader.py
@@ -11,12 +11,12 @@ import sys, time, io, re
 from zlib import decompressobj
 from collections import OrderedDict
 from threading import Thread
-from urllib import urlencode
 
 from calibre import prints
 from calibre.constants import numeric_version, DEBUG
 from calibre.gui2.store import StorePlugin
 from calibre.utils.config import JSONConfig
+from polyglot.urllib import urlencode
 
 
 class VersionMismatch(ValueError):
diff --git a/src/calibre/gui2/store/search/download_thread.py b/src/calibre/gui2/store/search/download_thread.py
index 5df4dd0966..b41c4fefe1 100644
--- a/src/calibre/gui2/store/search/download_thread.py
+++ b/src/calibre/gui2/store/search/download_thread.py
@@ -9,12 +9,12 @@ __docformat__ = 'restructuredtext en'
 import traceback, base64
 from contextlib import closing
 from threading import Thread
-from Queue import Queue
 
 from calibre import browser
 from calibre.constants import DEBUG
 from calibre.utils.img import scale_image
 from polyglot.builtins import range
+from polyglot.queue import Queue
 
 
 class GenericDownloadThreadPool(object):
diff --git a/src/calibre/gui2/store/web_control.py b/src/calibre/gui2/store/web_control.py
index 802e55e232..0eb974294b 100644
--- a/src/calibre/gui2/store/web_control.py
+++ b/src/calibre/gui2/store/web_control.py
@@ -7,7 +7,6 @@ __copyright__ = '2011, John Schember <john@nachtimwald.com>'
 __docformat__ = 'restructuredtext en'
 
 import os
-from urlparse import urlparse
 
 from PyQt5.Qt import QNetworkCookieJar, QNetworkProxy
 from PyQt5.QtWebKitWidgets import QWebView, QWebPage
@@ -20,6 +19,7 @@ from calibre.ptempfile import PersistentTemporaryFile
 from calibre.utils.filenames import ascii_filename
 from calibre.web import get_download_filename
 from polyglot.builtins import unicode_type
+from polyglot.urllib import urlparse
 
 
 class NPWebView(QWebView):
diff --git a/src/calibre/gui2/threaded_jobs.py b/src/calibre/gui2/threaded_jobs.py
index 77f66dec4f..aef553133d 100644
--- a/src/calibre/gui2/threaded_jobs.py
+++ b/src/calibre/gui2/threaded_jobs.py
@@ -9,11 +9,11 @@ __docformat__ = 'restructuredtext en'
 
 import os, time, tempfile, json
 from threading import Thread, RLock, Event
-from Queue import Queue
 
 from calibre.utils.ipc.job import BaseJob
 from calibre.utils.logging import GUILog
 from calibre.ptempfile import base_dir
+from polyglot.queue import Queue
 
 
 class ThreadedJob(BaseJob):
@@ -245,5 +245,3 @@ class ThreadedJobServer(Thread):
                 queued_types.append(job.type)
                 ans.append(job)
         return ans
-
-
diff --git a/src/calibre/gui2/tweak_book/boss.py b/src/calibre/gui2/tweak_book/boss.py
index db170f37fd..e179135a4f 100644
--- a/src/calibre/gui2/tweak_book/boss.py
+++ b/src/calibre/gui2/tweak_book/boss.py
@@ -9,7 +9,6 @@ import shutil
 import sys
 import tempfile
 from functools import partial, wraps
-from urlparse import urlparse
 
 from PyQt5.Qt import (
     QApplication, QCheckBox, QDialog, QDialogButtonBox, QGridLayout, QIcon,
@@ -71,6 +70,7 @@ from calibre.utils.icu import numeric_sort_key
 from calibre.utils.imghdr import identify
 from calibre.utils.tdir_in_cache import tdir_in_cache
 from polyglot.builtins import iteritems, string_or_bytes
+from polyglot.urllib import urlparse
 
 _diff_dialogs = []
 last_used_transform_rules = []
diff --git a/src/calibre/gui2/tweak_book/completion/worker.py b/src/calibre/gui2/tweak_book/completion/worker.py
index 13959df159..4a0e7b3a66 100644
--- a/src/calibre/gui2/tweak_book/completion/worker.py
+++ b/src/calibre/gui2/tweak_book/completion/worker.py
@@ -8,7 +8,6 @@ __copyright__ = '2014, Kovid Goyal <kovid at kovidgoyal.net>'
 
 import os, sys
 from threading import Thread, Event, RLock
-from Queue import Queue
 from contextlib import closing
 from collections import namedtuple
 
@@ -17,6 +16,7 @@ from calibre.gui2.tweak_book.completion.basic import Request
 from calibre.gui2.tweak_book.completion.utils import DataError
 from calibre.utils.ipc import eintr_retry_call
 from calibre.utils.serialize import msgpack_loads, msgpack_dumps
+from polyglot.queue import Queue
 
 COMPLETION_REQUEST = 'completion request'
 CLEAR_REQUEST = 'clear request'
diff --git a/src/calibre/gui2/tweak_book/preview.py b/src/calibre/gui2/tweak_book/preview.py
index 2eec8f531e..aa655d7682 100644
--- a/src/calibre/gui2/tweak_book/preview.py
+++ b/src/calibre/gui2/tweak_book/preview.py
@@ -11,9 +11,7 @@ from bisect import bisect_right
 from base64 import b64encode
 from polyglot.builtins import map, unicode_type
 from threading import Thread
-from Queue import Queue, Empty
 from functools import partial
-from urlparse import urlparse
 
 from PyQt5.Qt import (
     QWidget, QVBoxLayout, QApplication, QSize, QNetworkAccessManager, QMenu, QIcon,
@@ -31,6 +29,8 @@ from calibre.gui2.viewer.documentview import apply_settings
 from calibre.gui2.viewer.config import config
 from calibre.gui2.widgets2 import HistoryLineEdit2
 from calibre.utils.ipc.simple_worker import offload_worker
+from polyglot.urllib import urlparse
+from polyglot.queue import Queue, Empty
 
 shutdown = object()
 
diff --git a/src/calibre/gui2/tweak_book/save.py b/src/calibre/gui2/tweak_book/save.py
index 52ce1ac6e0..1b706b51b7 100644
--- a/src/calibre/gui2/tweak_book/save.py
+++ b/src/calibre/gui2/tweak_book/save.py
@@ -8,7 +8,6 @@ __copyright__ = '2013, Kovid Goyal <kovid at kovidgoyal.net>'
 
 import shutil, os, errno
 from threading import Thread
-from Queue import LifoQueue, Empty
 
 from PyQt5.Qt import (QObject, pyqtSignal, QLabel, QWidget, QHBoxLayout, Qt)
 
@@ -18,6 +17,7 @@ from calibre.gui2.progress_indicator import ProgressIndicator
 from calibre.utils import join_with_timeout
 from calibre.utils.filenames import atomic_rename, format_permissions
 from calibre.utils.ipc import RC
+from polyglot.queue import LifoQueue, Empty
 
 
 def save_dir_container(container, path):
diff --git a/src/calibre/gui2/ui.py b/src/calibre/gui2/ui.py
index 4bdbecded6..10bd4106c3 100644
--- a/src/calibre/gui2/ui.py
+++ b/src/calibre/gui2/ui.py
@@ -10,7 +10,6 @@ __docformat__ = 'restructuredtext en'
 '''The main GUI'''
 
 import collections, os, sys, textwrap, time, gc, errno, re
-from Queue import Queue, Empty
 from threading import Thread
 from collections import OrderedDict
 from io import BytesIO
@@ -54,6 +53,7 @@ from calibre.gui2.open_with import register_keyboard_shortcuts
 from calibre.library import current_library_name
 from calibre.srv.library_broker import GuiLibraryBroker
 from polyglot.builtins import unicode_type, string_or_bytes
+from polyglot.queue import Queue, Empty
 
 
 class Listener(Thread):  # {{{
diff --git a/src/calibre/gui2/viewer/main.py b/src/calibre/gui2/viewer/main.py
index 4d788093fe..9719842f48 100644
--- a/src/calibre/gui2/viewer/main.py
+++ b/src/calibre/gui2/viewer/main.py
@@ -420,7 +420,7 @@ class EbookViewer(MainWindow):
                 at_start=True)
 
     def lookup(self, word):
-        from urllib import quote
+        from polyglot.urllib import quote
         word = word.replace(u'\u00ad', '')
         word = quote(word.encode('utf-8'))
         lang = canonicalize_lang(self.view.current_language) or get_lang() or 'en'
diff --git a/src/calibre/library/sqlite.py b/src/calibre/library/sqlite.py
index 5fd140ce90..d876e96ccf 100644
--- a/src/calibre/library/sqlite.py
+++ b/src/calibre/library/sqlite.py
@@ -11,7 +11,6 @@ import sqlite3 as sqlite, traceback, time, uuid, sys, os
 import repr as reprlib
 from sqlite3 import IntegrityError, OperationalError
 from threading import Thread
-from Queue import Queue
 from threading import RLock
 from datetime import datetime
 from functools import partial
@@ -23,6 +22,7 @@ from calibre.constants import iswindows, DEBUG, plugins
 from calibre.utils.icu import sort_key
 from calibre import prints
 from polyglot.builtins import unicode_type
+from polyglot.queue import Queue
 
 from dateutil.tz import tzoffset
 
diff --git a/src/calibre/srv/auto_reload.py b/src/calibre/srv/auto_reload.py
index ca3827adee..e986846cac 100644
--- a/src/calibre/srv/auto_reload.py
+++ b/src/calibre/srv/auto_reload.py
@@ -8,7 +8,6 @@ __copyright__ = '2015, Kovid Goyal <kovid at kovidgoyal.net>'
 
 import os, sys, subprocess, signal, time, errno, socket, ssl
 from threading import Thread, Lock
-from Queue import Queue, Empty
 
 from calibre.constants import islinux, iswindows, isosx
 from calibre.srv.http_response import create_http_handler
@@ -18,6 +17,7 @@ from calibre.srv.standalone import create_option_parser
 from calibre.srv.utils import create_sock_pair
 from calibre.srv.web_socket import DummyHandler
 from calibre.utils.monotonic import monotonic
+from polyglot.queue import Queue, Empty
 
 MAX_RETRIES = 10
 
diff --git a/src/calibre/srv/content.py b/src/calibre/srv/content.py
index 116c666342..8835720659 100644
--- a/src/calibre/srv/content.py
+++ b/src/calibre/srv/content.py
@@ -12,7 +12,6 @@ from io import BytesIO
 from threading import Lock
 from polyglot.builtins import map
 from functools import partial
-from urllib import quote
 
 from calibre import fit_image, sanitize_file_name_unicode
 from calibre.constants import config_dir, iswindows
@@ -30,6 +29,7 @@ from calibre.utils.date import timestampfromdt
 from calibre.utils.img import scale_image, image_from_data
 from calibre.utils.filenames import ascii_filename, atomic_rename
 from calibre.utils.shared_file import share_open
+from polyglot.urllib import quote
 
 plugboard_content_server_value = 'content_server'
 plugboard_content_server_formats = ['epub', 'mobi', 'azw3']
diff --git a/src/calibre/srv/http_request.py b/src/calibre/srv/http_request.py
index 3dd7d68b17..384fe5a04f 100644
--- a/src/calibre/srv/http_request.py
+++ b/src/calibre/srv/http_request.py
@@ -8,13 +8,13 @@ __copyright__ = '2015, Kovid Goyal <kovid at kovidgoyal.net>'
 
 import re, httplib, repr as reprlib
 from io import BytesIO, DEFAULT_BUFFER_SIZE
-from urllib import unquote
 
 from calibre import as_unicode, force_unicode
 from calibre.ptempfile import SpooledTemporaryFile
 from calibre.srv.errors import HTTPSimpleResponse
 from calibre.srv.loop import Connection, READ, WRITE
 from calibre.srv.utils import MultiDict, HTTP1, HTTP11, Accumulator
+from polyglot.urllib import unquote
 
 protocol_map = {(1, 0):HTTP1, (1, 1):HTTP11}
 quoted_slash = re.compile(br'%2[fF]')
diff --git a/src/calibre/srv/jobs.py b/src/calibre/srv/jobs.py
index 3398cd42a0..d529ba3f6c 100644
--- a/src/calibre/srv/jobs.py
+++ b/src/calibre/srv/jobs.py
@@ -9,11 +9,11 @@ from itertools import count
 from collections import namedtuple, deque
 from functools import partial
 from threading import RLock, Thread, Event
-from Queue import Queue, Empty
 
 from calibre import detect_ncpus, force_unicode
 from calibre.utils.monotonic import monotonic
 from calibre.utils.ipc.simple_worker import fork_job, WorkerError
+from polyglot.queue import Queue, Empty
 
 StartEvent = namedtuple('StartEvent', 'job_id name module function args kwargs callback data')
 DoneEvent = namedtuple('DoneEvent', 'job_id')
diff --git a/src/calibre/srv/legacy.py b/src/calibre/srv/legacy.py
index 51e7ebf19f..4d9cb81be9 100644
--- a/src/calibre/srv/legacy.py
+++ b/src/calibre/srv/legacy.py
@@ -5,7 +5,6 @@
 from __future__ import absolute_import, division, print_function, unicode_literals
 
 from functools import partial
-from urllib import urlencode
 
 from lxml.html import tostring
 from lxml.html.builder import E as E_
@@ -21,6 +20,7 @@ from calibre.srv.utils import get_library_data, http_date
 from calibre.utils.cleantext import clean_xml_chars
 from calibre.utils.date import dt_as_local, is_date_undefined, timestampfromdt
 from polyglot.builtins import string_or_bytes
+from polyglot.urllib import urlencode
 
 # /mobile {{{
 
diff --git a/src/calibre/srv/loop.py b/src/calibre/srv/loop.py
index 3dd74ccb00..180603c42a 100644
--- a/src/calibre/srv/loop.py
+++ b/src/calibre/srv/loop.py
@@ -8,7 +8,6 @@ __copyright__ = '2015, Kovid Goyal <kovid at kovidgoyal.net>'
 
 import ssl, socket, select, os, traceback
 from io import BytesIO
-from Queue import Empty, Full
 from functools import partial
 
 from calibre import as_unicode
@@ -26,6 +25,7 @@ from calibre.utils.logging import ThreadSafeLog
 from calibre.utils.monotonic import monotonic
 from calibre.utils.mdns import get_external_ip
 from polyglot.builtins import range
+from polyglot.queue import Empty, Full
 
 READ, WRITE, RDWR, WAIT = 'READ', 'WRITE', 'RDWR', 'WAIT'
 WAKEUP, JOB_DONE = bytes(bytearray(range(2)))
diff --git a/src/calibre/srv/metadata.py b/src/calibre/srv/metadata.py
index ec2d768a9f..0a41c41161 100644
--- a/src/calibre/srv/metadata.py
+++ b/src/calibre/srv/metadata.py
@@ -10,7 +10,6 @@ from collections import namedtuple
 from datetime import datetime, time
 from functools import partial
 from threading import Lock
-from urllib import quote
 
 from calibre.constants import config_dir
 from calibre.db.categories import Tag
@@ -24,6 +23,7 @@ from calibre.utils.localization import calibre_langcode_to_name
 from calibre.library.comments import comments_to_html, markdown
 from calibre.library.field_metadata import category_icon_map
 from polyglot.builtins import range
+from polyglot.urllib import quote
 
 IGNORED_FIELDS = frozenset('cover ondevice path marked au_map size'.split())
 
diff --git a/src/calibre/srv/opds.py b/src/calibre/srv/opds.py
index f37127b21f..4319eecd5d 100644
--- a/src/calibre/srv/opds.py
+++ b/src/calibre/srv/opds.py
@@ -8,7 +8,6 @@ __docformat__ = 'restructuredtext en'
 import hashlib, binascii
 from functools import partial
 from collections import OrderedDict, namedtuple
-from urllib import urlencode
 
 from lxml import etree, html
 from lxml.builder import ElementMaker
@@ -28,6 +27,7 @@ from calibre.srv.errors import HTTPNotFound, HTTPInternalServerError
 from calibre.srv.routes import endpoint
 from calibre.srv.utils import get_library_data, http_date, Offsets
 from polyglot.builtins import unicode_type
+from polyglot.urllib import urlencode
 
 
 def hexlify(x):
diff --git a/src/calibre/srv/pool.py b/src/calibre/srv/pool.py
index 507aef42e5..c83d769fab 100644
--- a/src/calibre/srv/pool.py
+++ b/src/calibre/srv/pool.py
@@ -7,11 +7,11 @@ __license__ = 'GPL v3'
 __copyright__ = '2015, Kovid Goyal <kovid at kovidgoyal.net>'
 
 import sys
-from Queue import Queue, Full
 from threading import Thread
 
 from calibre.utils.monotonic import monotonic
 from polyglot.builtins import range
+from polyglot.queue import Queue, Full
 
 
 class Worker(Thread):
diff --git a/src/calibre/srv/render_book.py b/src/calibre/srv/render_book.py
index 813d8c6947..9f03211a92 100644
--- a/src/calibre/srv/render_book.py
+++ b/src/calibre/srv/render_book.py
@@ -10,8 +10,6 @@ from collections import defaultdict, OrderedDict
 from itertools import count
 from functools import partial
 from polyglot.builtins import map, unicode_type
-from urlparse import urlparse
-from urllib import quote
 
 from css_parser import replaceUrls
 from css_parser.css import CSSRule
@@ -30,6 +28,7 @@ from calibre.ebooks.oeb.polish.toc import get_toc, get_landmarks
 from calibre.ebooks.oeb.polish.utils import guess_type
 from calibre.utils.short_uuid import uuid4
 from calibre.utils.logging import default_log
+from polyglot.urllib import quote, urlparse
 
 RENDER_VERSION = 1
 
diff --git a/src/calibre/srv/routes.py b/src/calibre/srv/routes.py
index d2dad34078..23fadadd0f 100644
--- a/src/calibre/srv/routes.py
+++ b/src/calibre/srv/routes.py
@@ -7,7 +7,6 @@ __license__ = 'GPL v3'
 __copyright__ = '2015, Kovid Goyal <kovid at kovidgoyal.net>'
 
 import httplib, sys, inspect, re, time, numbers, json as jsonlib, textwrap
-from urllib import quote as urlquote
 from itertools import izip
 from operator import attrgetter
 
@@ -15,6 +14,7 @@ from calibre.srv.errors import HTTPSimpleResponse, HTTPNotFound, RouteError
 from calibre.srv.utils import http_date
 from calibre.utils.serialize import msgpack_dumps, json_dumps, MSGPACK_MIME
 from polyglot.builtins import unicode_type, range
+from polyglot.urllib import quote as urlquote
 
 default_methods = frozenset(('HEAD', 'GET'))
 
diff --git a/src/calibre/srv/tests/ajax.py b/src/calibre/srv/tests/ajax.py
index 759e715775..40007cd91f 100644
--- a/src/calibre/srv/tests/ajax.py
+++ b/src/calibre/srv/tests/ajax.py
@@ -9,11 +9,11 @@ __copyright__ = '2015, Kovid Goyal <kovid at kovidgoyal.net>'
 import httplib, zlib, json, base64, os
 from io import BytesIO
 from functools import partial
-from urllib import urlencode, quote
 from httplib import OK, NOT_FOUND, FORBIDDEN
 
 from calibre.ebooks.metadata.meta import get_metadata
 from calibre.srv.tests.base import LibraryBaseTest
+from polyglot.urllib import urlencode, quote
 
 
 def make_request(conn, url, headers={}, prefix='/ajax', username=None, password=None, method='GET', data=None):
diff --git a/src/calibre/srv/tests/auth.py b/src/calibre/srv/tests/auth.py
index 6fc7f8739f..196c7e2c9b 100644
--- a/src/calibre/srv/tests/auth.py
+++ b/src/calibre/srv/tests/auth.py
@@ -6,7 +6,7 @@ from __future__ import (unicode_literals, division, absolute_import,
 __license__ = 'GPL v3'
 __copyright__ = '2015, Kovid Goyal <kovid at kovidgoyal.net>'
 
-import httplib, base64, urllib2, subprocess, os, cookielib, time
+import httplib, base64, subprocess, os, cookielib, time
 from collections import namedtuple
 try:
     from distutils.spawn import find_executable
@@ -17,6 +17,8 @@ from calibre.ptempfile import TemporaryDirectory
 from calibre.srv.errors import HTTPForbidden
 from calibre.srv.tests.base import BaseTest, TestServer
 from calibre.srv.routes import endpoint, Router
+from polyglot.urllib import (build_opener, HTTPBasicAuthHandler,
+        HTTPCookieProcessor, HTTPDigestAuthHandler, HTTPError)
 
 REALM = 'calibre-test'
 
@@ -50,10 +52,10 @@ def router(prefer_basic_auth=False, ban_for=0, ban_after=5):
 
 
 def urlopen(server, path='/closed', un='testuser', pw='testpw', method='digest'):
-    auth_handler = urllib2.HTTPBasicAuthHandler() if method == 'basic' else urllib2.HTTPDigestAuthHandler()
+    auth_handler = HTTPBasicAuthHandler() if method == 'basic' else HTTPDigestAuthHandler()
     url = 'http://localhost:%d%s' % (server.address[1], path)
     auth_handler.add_password(realm=REALM, uri=url, user=un, passwd=pw)
-    return urllib2.build_opener(auth_handler).open(url)
+    return build_opener(auth_handler).open(url)
 
 
 def digest(un, pw, nonce=None, uri=None, method='GET', nc=1, qop='auth', realm=REALM, cnonce=None, algorithm='MD5', body=b'', modify=lambda x:None):
@@ -276,26 +278,26 @@ class TestAuth(BaseTest):
             r = conn.getresponse()
             self.ae(r.status, httplib.UNAUTHORIZED)
 
-            auth_handler = urllib2.HTTPDigestAuthHandler()
+            auth_handler = HTTPDigestAuthHandler()
             url = 'http://localhost:%d%s' % (server.address[1], '/android')
             auth_handler.add_password(realm=REALM, uri=url, user='testuser', passwd='testpw')
             cj = cookielib.CookieJar()
-            cookie_handler = urllib2.HTTPCookieProcessor(cj)
-            r = urllib2.build_opener(auth_handler, cookie_handler).open(url)
+            cookie_handler = HTTPCookieProcessor(cj)
+            r = build_opener(auth_handler, cookie_handler).open(url)
             self.ae(r.getcode(), httplib.OK)
             cookies = tuple(cj)
             self.ae(len(cookies), 1)
             cookie = cookies[0]
             self.assertIn(b':', cookie.value)
             self.ae(cookie.path, b'/android')
-            r = urllib2.build_opener(cookie_handler).open(url)
+            r = build_opener(cookie_handler).open(url)
             self.ae(r.getcode(), httplib.OK)
             self.ae(r.read(), b'android')
             # Test that a replay attack against a different URL does not work
             try:
-                urllib2.build_opener(cookie_handler).open(url+'2')
+                build_opener(cookie_handler).open(url+'2')
                 assert ('Replay attack succeeded')
-            except urllib2.HTTPError as e:
+            except HTTPError as e:
                 self.ae(e.code, httplib.UNAUTHORIZED)
 
     # }}}
diff --git a/src/calibre/srv/utils.py b/src/calibre/srv/utils.py
index 91efd16b12..ecff262e43 100644
--- a/src/calibre/srv/utils.py
+++ b/src/calibre/srv/utils.py
@@ -9,12 +9,10 @@ __copyright__ = '2015, Kovid Goyal <kovid at kovidgoyal.net>'
 import errno, socket, select, os, time
 from Cookie import SimpleCookie
 from contextlib import closing
-from urlparse import parse_qs
 import repr as reprlib
 from email.utils import formatdate
 from operator import itemgetter
 from polyglot.builtins import map, unicode_type, range
-from urllib import quote as urlquote
 from binascii import hexlify, unhexlify
 
 from calibre import prints
@@ -25,6 +23,7 @@ from calibre.utils.localization import get_translator
 from calibre.utils.socket_inheritance import set_socket_inherit
 from calibre.utils.logging import ThreadSafeLog
 from calibre.utils.shared_file import share_open, raise_winerror
+from polyglot.urllib import parse_qs, quote as urlquote
 
 HTTP1  = 'HTTP/1.0'
 HTTP11 = 'HTTP/1.1'
diff --git a/src/calibre/srv/web_socket.py b/src/calibre/srv/web_socket.py
index 7305737417..de6f72ecdb 100644
--- a/src/calibre/srv/web_socket.py
+++ b/src/calibre/srv/web_socket.py
@@ -9,7 +9,6 @@ import httplib, os, weakref, socket
 from base64 import standard_b64encode
 from collections import deque
 from hashlib import sha1
-from Queue import Queue, Empty
 from struct import unpack_from, pack, error as struct_error
 from threading import Lock
 
@@ -19,6 +18,7 @@ from calibre.srv.loop import ServerLoop, HandleInterrupt, WRITE, READ, RDWR, Con
 from calibre.srv.http_response import HTTPConnection, create_http_handler
 from calibre.srv.utils import DESIRED_SEND_BUFFER_SIZE
 from calibre.utils.speedups import ReadOnlyFileBuffer
+from polyglot.queue import Queue, Empty
 speedup, err = plugins['speedup']
 if not speedup:
     raise RuntimeError('Failed to load speedup module with error: ' + err)
diff --git a/src/calibre/translations/__init__.py b/src/calibre/translations/__init__.py
index 4c50ab4751..c03c4930f0 100644
--- a/src/calibre/translations/__init__.py
+++ b/src/calibre/translations/__init__.py
@@ -4,7 +4,9 @@ __copyright__ = '2008, Kovid Goyal <kovid at kovidgoyal.net>'
 '''
 Manage translation of user visible strings.
 '''
-import shutil, tarfile, re, os, subprocess, urllib2
+import shutil, tarfile, re, os, subprocess
+
+from polyglot.urllib import urlopen
 
 language_codes = {
     'aa':'Afar','ab':'Abkhazian','af':'Afrikaans','am':'Amharic','ar':'Arabic','as':'Assamese','ay':'Aymara','az':'Azerbaijani',
@@ -38,7 +40,7 @@ language_codes = {
 
 def import_from_launchpad(url):
     f = open('/tmp/launchpad_export.tar.gz', 'wb')
-    shutil.copyfileobj(urllib2.urlopen(url), f)
+    shutil.copyfileobj(urlopen(url), f)
     f.close()
     tf = tarfile.open('/tmp/launchpad_export.tar.gz', 'r:gz')
     next = tf.next()
diff --git a/src/calibre/utils/https.py b/src/calibre/utils/https.py
index ee7e670c08..690c1f454b 100644
--- a/src/calibre/utils/https.py
+++ b/src/calibre/utils/https.py
@@ -11,6 +11,7 @@ from contextlib import closing
 
 from calibre import get_proxies
 from calibre.constants import ispy3
+from polyglot.urllib import urlsplit
 has_ssl_verify = hasattr(ssl, 'create_default_context') and hasattr(ssl, '_create_unverified_context')
 
 
@@ -25,11 +26,9 @@ class HTTPError(ValueError):
 
 
 if ispy3:
-    from urllib.parse import urlparse
     import http.client as httplib
 else:
     import httplib
-    from urlparse import urlsplit as urlparse
 
 if has_ssl_verify:
     class HTTPSConnection(httplib.HTTPSConnection):
@@ -175,7 +174,7 @@ def get_https_resource_securely(
     cert_file = None
     if cacerts is not None:
         cert_file = P(cacerts, allow_user_override=False)
-    p = urlparse(url)
+    p = urlsplit(url)
     if p.scheme != 'https':
         raise ValueError('URL %s scheme must be https, not %r' % (url, p.scheme))
 
diff --git a/src/calibre/utils/ipc/job.py b/src/calibre/utils/ipc/job.py
index 73829f83bb..70cd4612c6 100644
--- a/src/calibre/utils/ipc/job.py
+++ b/src/calibre/utils/ipc/job.py
@@ -9,10 +9,10 @@ __docformat__ = 'restructuredtext en'
 _count = 0
 
 import time, io
-from Queue import Queue, Empty
 
 from calibre import prints
 from calibre.constants import DEBUG
+from polyglot.queue import Queue, Empty
 
 
 class BaseJob(object):
diff --git a/src/calibre/utils/ipc/pool.py b/src/calibre/utils/ipc/pool.py
index aff69e4354..ea1f1c5cef 100644
--- a/src/calibre/utils/ipc/pool.py
+++ b/src/calibre/utils/ipc/pool.py
@@ -9,7 +9,6 @@ __copyright__ = '2014, Kovid Goyal <kovid at kovidgoyal.net>'
 import os, sys
 from threading import Thread
 from collections import namedtuple
-from Queue import Queue
 
 from calibre import detect_ncpus, as_unicode, prints
 from calibre.constants import iswindows, DEBUG
@@ -17,6 +16,7 @@ from calibre.ptempfile import PersistentTemporaryFile
 from calibre.utils import join_with_timeout
 from calibre.utils.ipc import eintr_retry_call
 from calibre.utils.serialize import msgpack_dumps, msgpack_loads, pickle_dumps, pickle_loads
+from polyglot.queue import Queue
 
 Job = namedtuple('Job', 'id module func args kwargs')
 Result = namedtuple('Result', 'value err traceback')
diff --git a/src/calibre/utils/ipc/server.py b/src/calibre/utils/ipc/server.py
index 58269ce4a5..7bc3d33b42 100644
--- a/src/calibre/utils/ipc/server.py
+++ b/src/calibre/utils/ipc/server.py
@@ -17,7 +17,6 @@ from binascii import hexlify
 from collections import deque
 from math import ceil
 from multiprocessing.connection import Listener, arbitrary_address
-from Queue import Empty, Queue
 from threading import RLock, Thread
 
 from calibre import detect_ncpus as cpu_count
@@ -28,6 +27,7 @@ from calibre.utils.ipc.launch import Worker
 from calibre.utils.ipc.worker import PARALLEL_FUNCS
 from calibre.utils.serialize import msgpack_dumps, pickle_loads
 from polyglot.builtins import string_or_bytes, environ_item
+from polyglot.queue import Empty, Queue
 
 
 _counter = 0
diff --git a/src/calibre/utils/ipc/worker.py b/src/calibre/utils/ipc/worker.py
index c4ca19cd13..a244b5e3f5 100644
--- a/src/calibre/utils/ipc/worker.py
+++ b/src/calibre/utils/ipc/worker.py
@@ -10,7 +10,6 @@ __docformat__ = 'restructuredtext en'
 import os, sys, importlib
 from multiprocessing.connection import Client
 from threading import Thread
-from Queue import Queue
 from contextlib import closing
 from binascii import unhexlify
 from zipimport import ZipImportError
@@ -19,6 +18,7 @@ from calibre import prints
 from calibre.constants import iswindows, isosx
 from calibre.utils.ipc import eintr_retry_call
 from calibre.utils.serialize import msgpack_loads, pickle_dumps
+from polyglot.queue import Queue
 
 PARALLEL_FUNCS = {
     'lrfviewer'    :
diff --git a/src/calibre/utils/linux_trash.py b/src/calibre/utils/linux_trash.py
index bf01398f2f..8ab56eaa5f 100644
--- a/src/calibre/utils/linux_trash.py
+++ b/src/calibre/utils/linux_trash.py
@@ -22,9 +22,9 @@ from __future__ import (unicode_literals, division, absolute_import,
 import os, stat
 import os.path as op
 from datetime import datetime
-from urllib import quote
 
 from polyglot.builtins import unicode_type
+from polyglot.urllib import quote
 
 FILES_DIR = 'files'
 INFO_DIR = 'info'
diff --git a/src/calibre/utils/localization.py b/src/calibre/utils/localization.py
index 7f42282a47..a67f9ccfb4 100644
--- a/src/calibre/utils/localization.py
+++ b/src/calibre/utils/localization.py
@@ -9,7 +9,7 @@ __docformat__ = 'restructuredtext en'
 import os, locale, re, io
 from gettext import GNUTranslations, NullTranslations
 
-from polyglot.builtins import unicode_type
+from polyglot.builtins import is_py3, unicode_type
 
 _available_translations = None
 
@@ -244,7 +244,10 @@ def set_translators():
         set_translators.lang = t.info().get('language')
     except Exception:
         pass
-    t.install(unicode=True, names=('ngettext',))
+    if is_py3:
+        t.install(names=('ngettext',))
+    else:
+        t.install(unicode=True, names=('ngettext',))
     # Now that we have installed a translator, we have to retranslate the help
     # for the global prefs object as it was instantiated in get_lang(), before
     # the translator was installed.
@@ -500,7 +503,7 @@ def localize_user_manual_link(url):
     stats = user_manual_stats()
     if stats.get(lc, 0) < 0.3:
         return url
-    from urlparse import urlparse, urlunparse
+    from polyglot.urllib import urlparse, urlunparse
     parts = urlparse(url)
     path = re.sub(r'/generated/[a-z]+/', '/generated/%s/' % lc, parts.path or '')
     path = '/%s%s' % (lc, path)
@@ -525,7 +528,7 @@ def localize_website_link(url):
     langs = website_languages()
     if lc == 'en' or lc not in langs:
         return url
-    from urlparse import urlparse, urlunparse
+    from polyglot.urllib import urlparse, urlunparse
     parts = urlparse(url)
     path = '/{}{}'.format(lc, parts.path)
     parts = list(parts)
diff --git a/src/calibre/utils/matcher.py b/src/calibre/utils/matcher.py
index 7da1be1742..091f736c51 100644
--- a/src/calibre/utils/matcher.py
+++ b/src/calibre/utils/matcher.py
@@ -9,7 +9,6 @@ import atexit, os, sys
 from math import ceil
 from unicodedata import normalize
 from threading import Thread, Lock
-from Queue import Queue
 from operator import itemgetter
 from collections import OrderedDict
 from itertools import islice
@@ -20,6 +19,7 @@ from polyglot.builtins import map, unicode_type, range
 from calibre import detect_ncpus as cpu_count, as_unicode
 from calibre.constants import plugins, filesystem_encoding
 from calibre.utils.icu import primary_sort_key, primary_find, primary_collator
+from polyglot.queue import Queue
 
 DEFAULT_LEVEL1 = '/'
 DEFAULT_LEVEL2 = '-_ 0123456789'
diff --git a/src/calibre/utils/open_with/osx.py b/src/calibre/utils/open_with/osx.py
index 760a29a265..29a6a86e6d 100644
--- a/src/calibre/utils/open_with/osx.py
+++ b/src/calibre/utils/open_with/osx.py
@@ -20,9 +20,9 @@ application_locations = ('/Applications', '~/Applications', '~/Desktop')
 
 def generate_public_uti_map():
     from lxml import etree
-    import urllib
+    from polyglot.urllib import urlopen
     from html5_parser import parse
-    raw = urllib.urlopen(
+    raw = urlopen(
         'https://developer.apple.com/library/ios/documentation/Miscellaneous/Reference/UTIRef/Articles/System-DeclaredUniformTypeIdentifiers.html').read()
     root = parse(raw)
     tables = root.xpath('//table')[0::2]
diff --git a/src/calibre/utils/opensearch/query.py b/src/calibre/utils/opensearch/query.py
index da639c122e..8a25090577 100644
--- a/src/calibre/utils/opensearch/query.py
+++ b/src/calibre/utils/opensearch/query.py
@@ -6,8 +6,7 @@ __license__ = 'GPL 3'
 __copyright__ = '2006, Ed Summers <ehs@pobox.com>'
 __docformat__ = 'restructuredtext en'
 
-from urlparse import urlparse, urlunparse, parse_qs
-from urllib import urlencode
+from polyglot.urllib import parse_qs, urlencode, urlparse, urlunparse
 
 
 class Query(object):
@@ -72,4 +71,3 @@ class Query(object):
 
     def has_macro(self, macro):
         return macro in self.macro_map
-
diff --git a/src/calibre/utils/rapydscript.py b/src/calibre/utils/rapydscript.py
index ee0cf8aa07..67db41e87e 100644
--- a/src/calibre/utils/rapydscript.py
+++ b/src/calibre/utils/rapydscript.py
@@ -14,7 +14,6 @@ import subprocess
 import sys
 from functools import partial
 from io import BytesIO
-from Queue import Empty, Queue
 from threading import Thread, local
 
 from calibre import force_unicode
@@ -24,6 +23,7 @@ from calibre.utils.terminal import ANSIStream
 from duktape import Context, JSError, to_python
 from lzma.xz import compress, decompress
 from polyglot.builtins import range
+from polyglot.queue import Empty, Queue
 
 COMPILER_PATH = 'rapydscript/compiler.js.xz'
 
diff --git a/src/calibre/utils/serve_coffee.py b/src/calibre/utils/serve_coffee.py
index 2239860932..887df3a323 100644
--- a/src/calibre/utils/serve_coffee.py
+++ b/src/calibre/utils/serve_coffee.py
@@ -18,9 +18,9 @@ if sys.version_info.major > 2:
             file=sys.stderr)
     raise SystemExit(1)
 
-import time, BaseHTTPServer, os, sys, re, SocketServer
+import time, os, sys, re, SocketServer
 from threading import Lock, local
-from SimpleHTTPServer import SimpleHTTPRequestHandler
+from polyglot.http_server import BaseHTTPServer, SimpleHTTPRequestHandler
 
 # Compiler {{{
 
diff --git a/src/calibre/utils/sftp.py b/src/calibre/utils/sftp.py
deleted file mode 100644
index 07a66917da..0000000000
--- a/src/calibre/utils/sftp.py
+++ /dev/null
@@ -1,90 +0,0 @@
-#!/usr/bin/env  python2
-from __future__ import print_function
-__license__   = 'GPL v3'
-__copyright__ = '2008, Kovid Goyal kovid@kovidgoyal.net'
-__docformat__ = 'restructuredtext en'
-
-'''
-Create a file handle to a remote file over the sftp protocol.
-'''
-
-import sys, socket, getpass
-from urlparse import urlparse
-from binascii import hexlify
-
-import paramiko
-
-
-def agent_auth(transport, username):
-    """
-    Attempt to authenticate to the given transport using any of the private
-    keys available from an SSH agent.
-    """
-
-    agent = paramiko.Agent()
-    agent_keys = agent.get_keys()
-    if len(agent_keys) == 0:
-        return
-
-    for key in agent_keys:
-        print('Trying ssh-agent key %s' % hexlify(key.get_fingerprint()), end=' ')
-        try:
-            transport.auth_publickey(username, key)
-            print('... success!')
-            return True
-        except paramiko.SSHException:
-            print('... failed.')
-    return False
-
-
-def portable_getpass(username, hostname, retry):
-    return getpass.getpass('%sPlease enter the password for %s on %s: '%(
-                                'Incorrect password. ' if retry else '', username, hostname))
-
-
-def password_auth(transport, username, hostname, getpw=portable_getpass):
-    for i in range(3):
-        pw = getpw(username, hostname, i>0)
-        transport.auth_password(username, pw)
-        if transport.is_authenticated():
-            return True
-    return False
-
-
-def connect_to_url(url, getpw=portable_getpass, mode='r+', bufsize=-1):
-    protocol, host, path = urlparse(url)[:3]
-    if protocol != 'sftp':
-        raise ValueError(_('URL must have the scheme sftp'))
-    try:
-        username, host = host.split('@')
-    except:
-        raise ValueError(_('host must be of the form user@hostname'))
-    port = 22
-    if ':' in host:
-        host, port = host.split(':')
-        port = int(port)
-    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
-    sock.connect((host, port))
-    t = paramiko.Transport(sock)
-    try:
-        t.start_client()
-    except:
-        raise Exception(_('Failed to negotiate SSH session: ') + str(t.get_exception()))
-    if not agent_auth(t, username):
-        if not password_auth(t, username, host, getpw):
-            raise ValueError(_('Failed to authenticate with server: %s')%url)
-    sftp = paramiko.SFTPClient.from_transport(t)
-    return sftp, sftp.open(path, mode=mode, bufsize=bufsize)
-
-
-def main(args=sys.argv):
-    f = connect_to_url(args[1])[-1]
-    print(f.read())
-    f.seek(0, 2)
-    print(f.tell())
-    f.close()
-    return 0
-
-
-if __name__ == '__main__':
-    sys.exit(main())
diff --git a/src/calibre/utils/threadpool.py b/src/calibre/utils/threadpool.py
index 9d6503173a..8ed716743c 100644
--- a/src/calibre/utils/threadpool.py
+++ b/src/calibre/utils/threadpool.py
@@ -48,7 +48,7 @@ __license__ = 'Python license'
 
 # standard library modules
 import threading
-import Queue
+from polyglot import queue
 
 # exceptions
 
@@ -75,7 +75,7 @@ class WorkerThread(threading.Thread):
     def __init__(self, requestsQueue, resultsQueue, **kwds):
         """Set up thread in daemonic mode and start it immediatedly.
 
-        requestsQueue and resultQueue are instances of Queue.Queue passed
+        requestsQueue and resultQueue are instances of queue.Queue passed
         by the ThreadPool class when it creates a new worker thread.
         """
 
@@ -174,8 +174,8 @@ class ThreadPool:
         more work requests in it (see putRequest method).
         """
 
-        self.requestsQueue = Queue.Queue(q_size)
-        self.resultsQueue = Queue.Queue()
+        self.requestsQueue = queue.Queue(q_size)
+        self.resultsQueue = queue.Queue()
         self.workers = []
         self.workRequests = {}
         self.createWorkers(num_workers)
@@ -223,7 +223,7 @@ class ThreadPool:
                   (request.exception and request.exc_callback):
                     request.callback(request, result)
                 del self.workRequests[request.requestID]
-            except Queue.Empty:
+            except queue.Empty:
                 break
 
     def wait(self, sleep=0):
diff --git a/src/calibre/web/__init__.py b/src/calibre/web/__init__.py
index a9b35a3749..82d8a2e47c 100644
--- a/src/calibre/web/__init__.py
+++ b/src/calibre/web/__init__.py
@@ -7,12 +7,11 @@ class Recipe(object):
 
 
 def get_download_filename_from_response(response):
-    from urlparse import urlparse
-    from urllib2 import unquote as urllib2_unquote
+    from polyglot.urllib import unquote, urlparse
     filename = last_part_name = ''
     try:
         purl = urlparse(response.geturl())
-        last_part_name = urllib2_unquote(purl.path.split('/')[-1])
+        last_part_name = unquote(purl.path.split('/')[-1])
         disposition = response.info().get('Content-disposition', '')
         for p in disposition.split(';'):
             if 'filename' in p:
@@ -25,7 +24,7 @@ def get_download_filename_from_response(response):
                     filename = filename[1:]
                 if filename[-1] in ('\'', '"'):
                     filename = filename[:-1]
-                filename = urllib2_unquote(filename)
+                filename = unquote(filename)
                 break
     except Exception:
         import traceback
diff --git a/src/calibre/web/feeds/news.py b/src/calibre/web/feeds/news.py
index 9ca3aae8c7..8b684d0048 100644
--- a/src/calibre/web/feeds/news.py
+++ b/src/calibre/web/feeds/news.py
@@ -7,7 +7,7 @@ Defines various abstract base classes that can be subclassed to create powerful
 __docformat__ = "restructuredtext en"
 
 
-import os, time, traceback, re, urlparse, sys, io
+import os, time, traceback, re, sys, io
 from collections import defaultdict
 from functools import partial
 from contextlib import nested, closing
@@ -32,6 +32,7 @@ from calibre.utils.img import save_cover_data_to, add_borders_to_image, image_to
 from calibre.utils.localization import canonicalize_lang
 from calibre.utils.logging import ThreadSafeWrapper
 from polyglot.builtins import unicode_type, string_or_bytes
+from polyglot.urllib import urlparse, urlsplit
 
 
 class LoginFailed(ValueError):
@@ -652,7 +653,7 @@ class BasicNewsRecipe(Recipe):
                         download an article.
         '''
         try:
-            parts = urlparse.urlparse(url)
+            parts = urlparse(url)
         except Exception:
             self.log.error('Failed to parse url: %r, ignoring' % url)
             return frozenset()
@@ -1092,7 +1093,7 @@ class BasicNewsRecipe(Recipe):
             if feed.image_url in self.image_map:
                 feed.image_url = self.image_map[feed.image_url]
             else:
-                bn = urlparse.urlsplit(feed.image_url).path
+                bn = urlsplit(feed.image_url).path
                 if bn:
                     bn = bn.rpartition('/')[-1]
                     if bn:
diff --git a/src/calibre/web/fetch/simple.py b/src/calibre/web/fetch/simple.py
index a894691510..3d0a3dc6db 100644
--- a/src/calibre/web/fetch/simple.py
+++ b/src/calibre/web/fetch/simple.py
@@ -7,8 +7,7 @@ __copyright__ = '2008, Kovid Goyal <kovid at kovidgoyal.net>'
 Fetch a webpage and its links recursively. The webpages are saved to disk in
 UTF-8 encoding with any charset declarations removed.
 '''
-import sys, socket, os, urlparse, re, time, urllib2, threading, traceback
-from urllib import url2pathname, quote
+import sys, socket, os, re, time, threading, traceback
 from httplib import responses
 from base64 import b64decode
 
@@ -25,6 +24,8 @@ from calibre.utils.img import image_from_data, image_to_data
 from calibre.utils.imghdr import what
 from calibre.web.fetch.utils import rescale_image
 from polyglot.builtins import unicode_type
+from polyglot.urllib import (quote, URLError, url2pathname, urljoin,
+        urlparse, urlsplit, urlunsplit)
 
 
 class AbortArticle(Exception):
@@ -57,7 +58,7 @@ bad_url_counter = 0
 
 def basename(url):
     try:
-        parts = urlparse.urlsplit(url)
+        parts = urlsplit(url)
         path = url2pathname(parts.path)
         res = os.path.basename(path)
     except:
@@ -261,16 +262,16 @@ class RecursiveFetcher(object):
         # handles quoting automatically, but leaving it
         # in case it breaks something
         if re.search(r'\s+', url) is not None:
-            purl = list(urlparse.urlparse(url))
+            purl = list(urlparse(url))
             for i in range(2, 6):
                 purl[i] = quote(purl[i])
-            url = urlparse.urlunparse(purl)
+            url = urlunparse(purl)
         open_func = getattr(self.browser, 'open_novisit', self.browser.open)
         try:
             with closing(open_func(url, timeout=self.timeout)) as f:
                 data = response(f.read()+f.read())
                 data.newurl = f.geturl()
-        except urllib2.URLError as err:
+        except URLError as err:
             if hasattr(err, 'code') and err.code in responses:
                 raise FetchError(responses[err.code])
             if getattr(err, 'reason', [0])[0] == 104 or \
@@ -325,8 +326,8 @@ class RecursiveFetcher(object):
         for c, tag in enumerate(soup.findAll(lambda tag: tag.name.lower()in ['link', 'style'] and tag.has_key('type') and tag['type'].lower() == 'text/css')):  # noqa
             if tag.has_key('href'):  # noqa
                 iurl = tag['href']
-                if not urlparse.urlsplit(iurl).scheme:
-                    iurl = urlparse.urljoin(baseurl, iurl, False)
+                if not urlsplit(iurl).scheme:
+                    iurl = urljoin(baseurl, iurl, False)
                 with self.stylemap_lock:
                     if self.stylemap.has_key(iurl):  # noqa
                         tag['href'] = self.stylemap[iurl]
@@ -348,8 +349,8 @@ class RecursiveFetcher(object):
                     m = self.__class__.CSS_IMPORT_PATTERN.search(src)
                     if m:
                         iurl = m.group(1)
-                        if not urlparse.urlsplit(iurl).scheme:
-                            iurl = urlparse.urljoin(baseurl, iurl, False)
+                        if not urlsplit(iurl).scheme:
+                            iurl = urljoin(baseurl, iurl, False)
                         with self.stylemap_lock:
                             if self.stylemap.has_key(iurl):  # noqa
                                 ns.replaceWith(src.replace(m.group(1), self.stylemap[iurl]))
@@ -386,8 +387,8 @@ class RecursiveFetcher(object):
             else:
                 if callable(self.image_url_processor):
                     iurl = self.image_url_processor(baseurl, iurl)
-                if not urlparse.urlsplit(iurl).scheme:
-                    iurl = urlparse.urljoin(baseurl, iurl, False)
+                if not urlsplit(iurl).scheme:
+                    iurl = urljoin(baseurl, iurl, False)
                 with self.imagemap_lock:
                     if self.imagemap.has_key(iurl):  # noqa
                         tag['src'] = self.imagemap[iurl]
@@ -443,11 +444,11 @@ class RecursiveFetcher(object):
 
     def absurl(self, baseurl, tag, key, filter=True):
         iurl = tag[key]
-        parts = urlparse.urlsplit(iurl)
+        parts = urlsplit(iurl)
         if not parts.netloc and not parts.path and not parts.query:
             return None
         if not parts.scheme:
-            iurl = urlparse.urljoin(baseurl, iurl, False)
+            iurl = urljoin(baseurl, iurl, False)
         if not self.is_link_ok(iurl):
             self.log.debug('Skipping invalid link:', iurl)
             return None
@@ -457,12 +458,12 @@ class RecursiveFetcher(object):
         return iurl
 
     def normurl(self, url):
-        parts = list(urlparse.urlsplit(url))
+        parts = list(urlsplit(url))
         parts[4] = ''
-        return urlparse.urlunsplit(parts)
+        return urlunsplit(parts)
 
     def localize_link(self, tag, key, path):
-        parts = urlparse.urlsplit(tag[key])
+        parts = urlsplit(tag[key])
         suffix = ('#'+parts.fragment) if parts.fragment else ''
         tag[key] = path+suffix
 
@@ -547,7 +548,7 @@ class RecursiveFetcher(object):
 
                     if newbaseurl and not newbaseurl.startswith('/'):
                         for atag in soup.findAll('a', href=lambda x: x and x.startswith('/')):
-                            atag['href'] = urlparse.urljoin(newbaseurl, atag['href'], True)
+                            atag['href'] = urljoin(newbaseurl, atag['href'], True)
                     if callable(self.postprocess_html_ext):
                         soup = self.postprocess_html_ext(soup,
                                 c==0 and recursion_level==0 and not getattr(self, 'called_first', False),
diff --git a/src/polyglot/queue.py b/src/polyglot/queue.py
new file mode 100644
index 0000000000..17323ed37b
--- /dev/null
+++ b/src/polyglot/queue.py
@@ -0,0 +1,10 @@
+#!/usr/bin/env python2
+# vim:fileencoding=utf-8
+# License: GPL v3 Copyright: 2019, Eli Schwartz <eschwartz@archlinux.org>
+
+from polyglot.builtins import is_py3
+
+if is_py3:
+    from queue import *  # noqa
+else:
+    from Queue import *  # noqa
diff --git a/src/polyglot/urllib.py b/src/polyglot/urllib.py
index a79a535fbb..9a706fcdf5 100644
--- a/src/polyglot/urllib.py
+++ b/src/polyglot/urllib.py
@@ -2,14 +2,22 @@
 # vim:fileencoding=utf-8
 # License: GPL v3 Copyright: 2018, Kovid Goyal <kovid at kovidgoyal.net>
 
-from __future__ import absolute_import, division, print_function, unicode_literals
-
+from __future__ import absolute_import
 
 from polyglot.builtins import is_py3
 
 if is_py3:
-    from urllib.request import urlopen, Request  # noqa
-    from urllib.parse import urlencode  # noqa
+    from urllib.request import (build_opener, getproxies, install_opener,  # noqa
+            HTTPBasicAuthHandler, HTTPCookieProcessor, HTTPDigestAuthHandler,  # noqa
+            url2pathname, urlopen, Request)  # noqa
+    from urllib.parse import (parse_qs, quote, unquote, quote_plus, urldefrag,  # noqa
+            urlencode, urljoin, urlparse, urlunparse, urlsplit, urlunsplit)  # noqa
+    from urllib.error import HTTPError, URLError  # noqa
 else:
-    from urllib import urlencode  # noqa
-    from urllib2 import urlopen, Request  # noqa
+    from urllib import (getproxies, quote, unquote, quote_plus, url2pathname,  # noqa
+            urlencode)  # noqa
+    from urllib2 import (build_opener, install_opener, HTTPBasicAuthHandler,  # noqa
+            HTTPCookieProcessor, HTTPDigestAuthHandler, HTTPError, URLError,  # noqa
+            urlopen, Request)  # noqa
+    from urlparse import (parse_qs, urldefrag, urljoin, urlparse, urlunparse,  # noqa
+            urlsplit, urlunsplit)  # noqa