diff --git a/python/minimal_test.py b/python/minimal_test.py
index 8e7a65a77e..b88d7320c0 100644
--- a/python/minimal_test.py
+++ b/python/minimal_test.py
@@ -143,17 +143,17 @@ class OversizeProtosTest(unittest.TestCase):
 
     extension_int32 = more_extensions_pb2.optional_int_extension
     extendee_proto.Extensions[extension_int32] = 23
-    
+
     extension_repeated = more_extensions_pb2.repeated_int_extension
     extendee_proto.Extensions[extension_repeated].append(11)
 
     extension_msg = more_extensions_pb2.optional_message_extension
     extendee_proto.Extensions[extension_msg].foreign_message_int = 56
-  
+
     # Set some normal fields.
     extendee_proto.optional_int32 = 1
     extendee_proto.repeated_string.append('hi')
-  
+
     expected = {
         extension_int32: True,
         extension_msg: True,
diff --git a/python/pb_unit_tests/text_format_test_wrapper.py b/python/pb_unit_tests/text_format_test_wrapper.py
index b8cf207b62..151196458a 100644
--- a/python/pb_unit_tests/text_format_test_wrapper.py
+++ b/python/pb_unit_tests/text_format_test_wrapper.py
@@ -29,6 +29,7 @@ from google.protobuf.internal import _parameterized
 
 sep = _parameterized._SEPARATOR
 
+# These rely on the UnknownFields accessor, which we are trying to deprecate.
 text_format_test.OnlyWorksWithProto2RightNowTests.testPrintUnknownFields.__unittest_expecting_failure__ = True
 getattr(text_format_test.TextFormatMessageToStringTests, "testPrintUnknownFieldsEmbeddedMessageInBytes" + sep + "0").__unittest_expecting_failure__ = True
 getattr(text_format_test.TextFormatMessageToStringTests, "testPrintUnknownFieldsEmbeddedMessageInBytes" + sep + "1").__unittest_expecting_failure__ = True