[py] correct tox warnings

AutomatedTester · AutomatedTester · commit 2c94ad31fa82 · 2021-07-12T16:44:42.000+01:00
diff --git a/py/selenium/webdriver/common/utils.py b/py/selenium/webdriver/common/utils.py
@@ -28,6 +28,7 @@
 
 _is_connectable_exceptions = (socket.error, ConnectionResetError)
 
+
 def free_port() -> int:
     """
     Determines a free port using sockets.
