diff --git a/test/test_buffer.py b/test/test_buffer.py
index 2c5a14c..ca09722 100644
--- a/test/test_buffer.py
+++ b/test/test_buffer.py
@@ -17,7 +17,7 @@ def test_unpack_bytearray():
     obj = unpackb(buf, use_list=1)
     assert [b"foo", b"bar"] == obj
     expected_type = bytes
-    assert all(type(s) == expected_type for s in obj)
+    assert all(type(s) is expected_type for s in obj)
 
 
 def test_unpack_memoryview():
@@ -26,7 +26,7 @@ def test_unpack_memoryview():
     obj = unpackb(view, use_list=1)
     assert [b"foo", b"bar"] == obj
     expected_type = bytes
-    assert all(type(s) == expected_type for s in obj)
+    assert all(type(s) is expected_type for s in obj)
 
 
 def test_packer_getbuffer():
diff --git a/test/test_multithreading.py b/test/test_multithreading.py
index 911420e..6694fdc 100644
--- a/test/test_multithreading.py
+++ b/test/test_multithreading.py
@@ -1,7 +1,8 @@
 #!/usr/bin/env python3
-from concurrent.futures import ThreadPoolExecutor
-from msgpack import Packer
 import threading
+from concurrent.futures import ThreadPoolExecutor
+
+from msgpack import Packer
 
 
 def run_threaded(