diff --git a/requests/auth.py b/requests/auth.py
index 2e2bebcb..385dd27d 100644
--- a/requests/auth.py
+++ b/requests/auth.py
@@ -11,7 +11,7 @@ import time
 import hashlib
 
 from base64 import b64encode
-from .compat import urlparse, str, bytes
+from .compat import urlparse, str
 from .utils import randombytes, parse_dict_header