[3.10] gh-105821: Use a raw f-string in test_httpservers.py (GH-105822) (#115519)

diff --git a/Lib/test/test_httpservers.py b/Lib/test/test_httpservers.py
index 66ab064241a08af0405b72e9724955338413ad80..10a50fe97ec13179ca92902bd5ae3538d70a427b 100644 (file)
--- a/Lib/test/test_httpservers.py
+++ b/Lib/test/test_httpservers.py
@@ -420,10 +420,10 @@ class SimpleHTTPServerTestCase(BaseTestCase):
     def test_undecodable_parameter(self):
         # sanity check using a valid parameter
         response = self.request(self.base_url + '/?x=123').read()
-        self.assertRegex(response, f'listing for {self.base_url}/\?x=123'.encode('latin1'))
+        self.assertRegex(response, rf'listing for {self.base_url}/\?x=123'.encode('latin1'))
         # now the bogus encoding
         response = self.request(self.base_url + '/?x=%bb').read()
-        self.assertRegex(response, f'listing for {self.base_url}/\?x=\xef\xbf\xbd'.encode('latin1'))
+        self.assertRegex(response, rf'listing for {self.base_url}/\?x=\xef\xbf\xbd'.encode('latin1'))
 
     def test_get_dir_redirect_location_domain_injection_bug(self):
         """Ensure //evil.co/..%2f../../X does not put //evil.co/ in Location.