Removing format string so 3.5 is supported.

1 files changed, 1 insertions, 1 deletions

diff --git a/tests.py b/tests.py
index 8db665c..e3e74de 100644
--- a/tests.py
+++ b/tests.py
@@ -461,7 +461,7 @@ class UnixSocketInternalTests(InternalTests):
         )
 
     def get_client(self):
-        print(f"Serving on {self.port}")
+        print("Serving on {}".format(self.port))
         return Server('unix:/%s' % self.port)
 
     def tearDown(self):