Minor
diff --git a/Lib/fontTools/ttLib/tables/otBase.py b/Lib/fontTools/ttLib/tables/otBase.py
index 7f56af7..9f6f84d 100644
--- a/Lib/fontTools/ttLib/tables/otBase.py
+++ b/Lib/fontTools/ttLib/tables/otBase.py
@@ -498,7 +498,7 @@
 class BaseTable(object):
 
 	def __getattr__(self, attr):
-		reader = self.__dict__.get("reader", None)
+		reader = self.__dict__.get("reader")
 		if reader:
 			del self.reader
 			font = self.font
@@ -553,7 +553,7 @@
 		del self.__rawTable  # succeeded, get rid of debugging info
 
 	def ensureDecompiled(self):
-		reader = self.__dict__.get("reader", None)
+		reader = self.__dict__.get("reader")
 		if reader:
 			del self.reader
 			font = self.font
diff --git a/Lib/fontTools/ttLib/tables/otTables.py b/Lib/fontTools/ttLib/tables/otTables.py
index 44d69c4..5d3d08b 100644
--- a/Lib/fontTools/ttLib/tables/otTables.py
+++ b/Lib/fontTools/ttLib/tables/otTables.py
@@ -17,7 +17,7 @@
 class FeatureParams(BaseTable):
 
 	def compile(self, writer, font):
-		assert featureParamTypes.get(writer['FeatureTag'], None) == self.__class__, "Wrong FeatureParams type for feature '%s': %s" % (writer['FeatureTag'], self.__class__.__name__)
+		assert featureParamTypes.get(writer['FeatureTag']) == self.__class__, "Wrong FeatureParams type for feature '%s': %s" % (writer['FeatureTag'], self.__class__.__name__)
 		BaseTable.compile(self, writer, font)
 
 	def toXML(self, xmlWriter, font, attrs=None, name=None):