pick deque instead of list (#7849)

Co-authored-by: Jack Zhang <jack.zhang@aspiraconnect.com>

rest_framework/throttling.py

@@ -2,6 +2,7 @@
 Provides various throttling policies.
 """
 import time
+from collections import deque
 
 from django.core.cache import cache as default_cache
 from django.core.exceptions import ImproperlyConfigured
@@ -120,7 +121,7 @@ class SimpleRateThrottle(BaseThrottle):
         if self.key is None:
             return True
 
-        self.history = self.cache.get(self.key, [])
+        self.history = self.cache.get(self.key, deque())
         self.now = self.timer()
 
         # Drop any requests from the history which have now passed the