diff --git a/morss/__main__.py b/morss/__main__.py
index d074337..6803aa0 100644
--- a/morss/__main__.py
+++ b/morss/__main__.py
@@ -20,9 +20,7 @@
 import os
 import sys
 
-from . import wsgi
-from . import cli
-
+from . import cli, wsgi
 from .morss import MorssException
 
 
diff --git a/morss/crawler.py b/morss/crawler.py
index 41fa0d6..f882ac3 100644
--- a/morss/crawler.py
+++ b/morss/crawler.py
@@ -16,30 +16,33 @@
 # with this program. If not, see <https://www.gnu.org/licenses/>.
 
 import os
-import sys
-
-import zlib
-from io import BytesIO, StringIO
-import re
-import chardet
-from cgi import parse_header
-import time
-import threading
 import random
+import re
+import sys
+import threading
+import time
+import zlib
+from cgi import parse_header
 from collections import OrderedDict
+from io import BytesIO, StringIO
+
+import chardet
 
 try:
     # python 2
-    from urllib2 import BaseHandler, HTTPCookieProcessor, Request, addinfourl, parse_keqv_list, parse_http_list, build_opener
     from urllib import quote
-    from urlparse import urlparse, urlunparse
+
     import mimetools
+    from urllib2 import (BaseHandler, HTTPCookieProcessor, Request, addinfourl,
+                         build_opener, parse_http_list, parse_keqv_list)
+    from urlparse import urlparse, urlunparse
 except ImportError:
     # python 3
-    from urllib.request import BaseHandler, HTTPCookieProcessor, Request, addinfourl, parse_keqv_list, parse_http_list, build_opener
-    from urllib.parse import quote
-    from urllib.parse import urlparse, urlunparse
     import email
+    from urllib.parse import quote, urlparse, urlunparse
+    from urllib.request import (BaseHandler, HTTPCookieProcessor, Request,
+                                addinfourl, build_opener, parse_http_list,
+                                parse_keqv_list)
 
 try:
     # python 2
@@ -620,7 +623,7 @@ class BaseCache:
             return True
 
 
-import sqlite3
+import sqlite3 # isort:skip
 
 
 class SQLiteCache(BaseCache):
@@ -657,7 +660,7 @@ class SQLiteCache(BaseCache):
             self.con.execute('INSERT INTO data VALUES (?,?,?,?,?,?) ON CONFLICT(url) DO UPDATE SET code=?, msg=?, headers=?, data=?, timestamp=?', (url,) + value + value)
 
 
-import pymysql.cursors
+import pymysql.cursors # isort:skip
 
 
 class MySQLCacheHandler(BaseCache):
diff --git a/morss/feeds.py b/morss/feeds.py
index f738ebe..5c0736a 100644
--- a/morss/feeds.py
+++ b/morss/feeds.py
@@ -15,35 +15,33 @@
 # You should have received a copy of the GNU Affero General Public License along
 # with this program. If not, see <https://www.gnu.org/licenses/>.
 
-import sys
 import os.path
+import sys
 
-from datetime import datetime
-
-import re
-import json
 import csv
-
+import json
+import re
+from copy import deepcopy
+from datetime import datetime
 from fnmatch import fnmatch
 
-from lxml import etree
-from dateutil import tz
 import dateutil.parser
-from copy import deepcopy
-
 import lxml.html
+from dateutil import tz
+from lxml import etree
+
 from .readabilite import parse as html_parse
 
 json.encoder.c_make_encoder = None
 
 try:
     # python 2
-    from StringIO import StringIO
     from ConfigParser import RawConfigParser
+    from StringIO import StringIO
 except ImportError:
     # python 3
-    from io import StringIO
     from configparser import RawConfigParser
+    from io import StringIO
 
 try:
     # python 2
diff --git a/morss/morss.py b/morss/morss.py
index 198b0a5..4423d38 100644
--- a/morss/morss.py
+++ b/morss/morss.py
@@ -16,30 +16,25 @@
 # with this program. If not, see <https://www.gnu.org/licenses/>.
 
 import os
-
+import re
 import time
 from datetime import datetime
-from dateutil import tz
-
 from fnmatch import fnmatch
-import re
 
 import lxml.etree
 import lxml.html
+from dateutil import tz
 
-from . import feeds
-from . import crawler
-from . import readabilite
-
+from . import crawler, feeds, readabilite
 
 try:
     # python 2
     from httplib import HTTPException
-    from urlparse import urlparse, urljoin, parse_qs
+    from urlparse import parse_qs, urljoin, urlparse
 except ImportError:
     # python 3
     from http.client import HTTPException
-    from urllib.parse import urlparse, urljoin, parse_qs
+    from urllib.parse import parse_qs, urljoin, urlparse
 
 
 MAX_ITEM = int(os.getenv('MAX_ITEM', 5)) # cache-only beyond
diff --git a/morss/wsgi.py b/morss/wsgi.py
index 32a3cde..76fd895 100644
--- a/morss/wsgi.py
+++ b/morss/wsgi.py
@@ -15,16 +15,16 @@
 # You should have received a copy of the GNU Affero General Public License along
 # with this program. If not, see <https://www.gnu.org/licenses/>.
 
-import sys
+import cgitb
+import mimetypes
 import os.path
 import re
-import lxml.etree
-
-import cgitb
-import wsgiref.util
-import wsgiref.simple_server
+import sys
 import wsgiref.handlers
-import mimetypes
+import wsgiref.simple_server
+import wsgiref.util
+
+import lxml.etree
 
 try:
     # python 2
@@ -33,11 +33,9 @@ except ImportError:
     # python 3
     from urllib.parse import unquote
 
-from . import crawler
-from . import readabilite
-from .morss import FeedFetch, FeedGather, FeedFormat
-from .morss import Options, log, TIMEOUT, DELAY, MorssException
-
+from . import crawler, readabilite
+from .morss import (DELAY, TIMEOUT, FeedFetch, FeedFormat, FeedGather,
+                    MorssException, Options, log)
 
 PORT = int(os.getenv('PORT', 8080))