Use an immutable for default parameter value

humandx · Dec 4, 2019 · 5e2906a · 5e2906a
1 parent 5ec7c88
commit 5e2906a
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/tests/wsgi_test.py b/tests/wsgi_test.py
@@ -116,7 +116,7 @@ def __call__(self, env, start_response):
 
 
 class IterableApp(object):
-    def __init__(self, send_start_response=False, return_val=[]):
+    def __init__(self, send_start_response=False, return_val=()):
         self.send_start_response = send_start_response
         self.return_val = return_val
         self.env = {}