diff --git a/test/test_messages.py b/test/test_messages.py
index ea2831e..fdadc2d 100755
--- a/test/test_messages.py
+++ b/test/test_messages.py
@@ -25,7 +25,7 @@ import time
 
 sys.path.insert(0, os.path.dirname(os.path.realpath(__file__)) + '/..')  # noqa
 
-from tuhi.protocol import *
+from tuhi.protocol import *  # noqa
 
 
 SUCCESS = NordicData([0xb3, 0x1, 0x00])
diff --git a/test/test_strokes.py b/test/test_strokes.py
index b44d4a6..7350a56 100755
--- a/test/test_strokes.py
+++ b/test/test_strokes.py
@@ -27,8 +27,8 @@ import logging
 
 sys.path.insert(0, os.path.dirname(os.path.realpath(__file__)) + '/..')  # noqa
 
-from tuhi.protocol import *
-from tuhi.util import flatten
+from tuhi.protocol import *  # noqa
+from tuhi.util import flatten  # noqa
 
 logger = logging.getLogger('tuhi')  # piggyback the debug messages
 logger.setLevel(logging.DEBUG)
diff --git a/tools/raw-log-converter.py b/tools/raw-log-converter.py
index 4389583..1ec9777 100755
--- a/tools/raw-log-converter.py
+++ b/tools/raw-log-converter.py
@@ -28,11 +28,11 @@ import logging
 # This tool isn't installed, so we can assume that the tuhi module is always
 # in the parent directory
 sys.path.insert(0, os.path.dirname(os.path.realpath(__file__)) + '/..')  # noqa
-from tuhi.util import flatten
-from tuhi.drawing import Drawing
-from tuhi.protocol import StrokeFile
-from tuhi.export import JsonSvg, JsonPng
-from tuhi.wacom import WacomProtocolSpark, WacomProtocolIntuosPro, WacomProtocolSlate
+from tuhi.util import flatten  # noqa
+from tuhi.drawing import Drawing  # noqa
+from tuhi.protocol import StrokeFile  # noqa
+from tuhi.export import JsonSvg, JsonPng  # noqa
+from tuhi.wacom import WacomProtocolSpark, WacomProtocolIntuosPro, WacomProtocolSlate  # noqa
 
 logging.basicConfig(format='%(asctime)s %(levelname)s: %(name)s: %(message)s',
                     level=logging.INFO,