diff --git a/readability/htmls.py b/readability/htmls.py
index 843f0c0..82b9599 100644
--- a/readability/htmls.py
+++ b/readability/htmls.py
@@ -1,7 +1,6 @@
 from lxml.html import tostring
-import logging
 import lxml.html
-import re, sys
+import re
 
 from .cleaners import normalize_spaces, clean_attributes
 from .encoding import get_encoding
diff --git a/readability/readability.py b/readability/readability.py
index b0323b3..1b593b9 100755
--- a/readability/readability.py
+++ b/readability/readability.py
@@ -4,7 +4,6 @@ import logging
 import re
 import sys
 
-from collections import defaultdict
 from lxml.etree import tostring
 from lxml.etree import tounicode
 from lxml.html import document_fromstring