Use raw string for regexp

diff --git a/Lib/test/test_asyncio/test_streams.py b/Lib/test/test_asyncio/test_streams.py
index 1783d5f6306ade668840d6aa44f36ff8aaaa1f55..35557c3ce4a6f8ac9ec9de0b85384feb0dc46688 100644 (file)
--- a/Lib/test/test_asyncio/test_streams.py
+++ b/Lib/test/test_asyncio/test_streams.py
@@ -831,7 +831,7 @@ os.close(fd)
         stream._waiter = asyncio.Future(loop=self.loop)
         self.assertRegex(
             repr(stream),
-            "<StreamReader w=<Future pending[\S ]*>>")
+            r"<StreamReader w=<Future pending[\S ]*>>")
         stream._waiter.set_result(None)
         self.loop.run_until_complete(stream._waiter)
         stream._waiter = None