Use six.moves.urllib.

Signed-off-by: OGINO Masanori <masanori.ogino@gmail.com>

pelican/contents.py

@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 from __future__ import unicode_literals, print_function
 import six
-from six.moves.urllib.parse import unquote
+from six.moves.urllib.parse import (unquote, urlparse, urlunparse)
 
 import copy
 import locale
@@ -11,14 +11,8 @@ import os
 import re
 import sys
 
-try:
-    from urlparse import urlparse, urlunparse
-except ImportError:
-    from urllib.parse import urlparse, urlunparse
-
 from datetime import datetime
 
-
 from pelican import signals
 from pelican.settings import DEFAULT_CONFIG
 from pelican.utils import (slugify, truncate_html_words, memoized, strftime,