diff --git a/src/requests/sessions.py b/src/requests/sessions.py
index b387bc36df..fce7038c3a 100644
--- a/src/requests/sessions.py
+++ b/src/requests/sessions.py
@@ -145,7 +145,7 @@ def should_strip_auth(self, old_url, new_url):
         # Handle default port usage corresponding to scheme.
         changed_port = old_parsed.port != new_parsed.port
         changed_scheme = old_parsed.scheme != new_parsed.scheme
-        default_port = (DEFAULT_PORTS.get(old_parsed.scheme, None), None)
+        default_port = (DEFAULT_PORTS.get(old_parsed.scheme), None)
         if (
             not changed_scheme
             and old_parsed.port in default_port
diff --git a/src/requests/structures.py b/src/requests/structures.py
index 188e13e482..57a3a3feac 100644
--- a/src/requests/structures.py
+++ b/src/requests/structures.py
@@ -93,7 +93,7 @@ def __repr__(self):
     def __getitem__(self, key):
         # We allow fall-through here, so values default to None
 
-        return self.__dict__.get(key, None)
+        return self.__dict__.get(key)
 
     def get(self, key, default=None):
         return self.__dict__.get(key, default)