diff --git a/youtube_dl/extractor/ntv.py b/youtube_dl/extractor/ntv.py
index 733ed6c26..ed60314ec 100644
--- a/youtube_dl/extractor/ntv.py
+++ b/youtube_dl/extractor/ntv.py
@@ -5,7 +5,6 @@ import re
 
 from .common import InfoExtractor
 from ..utils import (
-    ExtractorError,
     unescapeHTML
 )
 
diff --git a/youtube_dl/extractor/slutload.py b/youtube_dl/extractor/slutload.py
index ecc0abfda..e6e7d0865 100644
--- a/youtube_dl/extractor/slutload.py
+++ b/youtube_dl/extractor/slutload.py
@@ -3,9 +3,6 @@ from __future__ import unicode_literals
 import re
 
 from .common import InfoExtractor
-from ..utils import (
-    ExtractorError,
-)
 
 
 class SlutloadIE(InfoExtractor):
diff --git a/youtube_dl/extractor/soundcloud.py b/youtube_dl/extractor/soundcloud.py
index 25515f068..7aa100fb2 100644
--- a/youtube_dl/extractor/soundcloud.py
+++ b/youtube_dl/extractor/soundcloud.py
@@ -1,7 +1,6 @@
 # encoding: utf-8
 from __future__ import unicode_literals
 
-import json
 import re
 import itertools