Merge pull request #3771 from robromano/master

Add HTTP status code 451 to status.py

docs/api-guide/status-codes.md

@@ -89,6 +89,7 @@ The 4xx class of status code is intended for cases in which the client seems to
     HTTP_428_PRECONDITION_REQUIRED
     HTTP_429_TOO_MANY_REQUESTS
     HTTP_431_REQUEST_HEADER_FIELDS_TOO_LARGE
+    HTTP_451_UNAVAILABLE_FOR_LEGAL_REASONS
 
 ## Server Error - 5xx
 

rest_framework/status.py

@@ -65,6 +65,7 @@ HTTP_417_EXPECTATION_FAILED = 417
 HTTP_428_PRECONDITION_REQUIRED = 428
 HTTP_429_TOO_MANY_REQUESTS = 429
 HTTP_431_REQUEST_HEADER_FIELDS_TOO_LARGE = 431
+HTTP_451_UNAVAILABLE_FOR_LEGAL_REASONS = 451
 HTTP_500_INTERNAL_SERVER_ERROR = 500
 HTTP_501_NOT_IMPLEMENTED = 501
 HTTP_502_BAD_GATEWAY = 502