@@ -175,6 +175,6 @@ def post(self):
 
         resp = client.post_json("/apples/validation/", data, status=400)
         assert re.match(
-            "Additional properties are not allowed \(u*'agge' was unexpected\)",
+            r"Additional properties are not allowed \(u*'agge' was unexpected\)",
             resp["errors"][""],
         )
Original file line number	Diff line number	Diff line change
`@@ -175,6 +175,6 @@ def post(self):`
`175`	`175`
`176`	`176`	`resp = client.post_json("/apples/validation/", data, status=400)`
`177`	`177`	`assert re.match(`
`178`		`- "Additional properties are not allowed \(u*'agge' was unexpected\)",`
	`178`	`+ r"Additional properties are not allowed \(u*'agge' was unexpected\)",`
`179`	`179`	`resp["errors"][""],`
`180`	`180`	`)`