Address review comments

py/selenium/webdriver/common/utils.py

@@ -22,10 +22,13 @@
 from selenium.webdriver.common.keys import Keys
 
 try:
+    # Python 2
     basestring
+    _is_connectable_exceptions = (socket.error,)
 except NameError:
     # Python 3
     basestring = str
+    _is_connectable_exceptions = (socket.error, ConnectionResetError)
 
 
 def free_port():
@@ -102,16 +105,10 @@ def is_connectable(port, host="localhost"):
      - port - The port to connect.
     """
     socket_ = None
-
-    if sys.version_info > (3, 4):
-        expected_exceptions = (socket.error, ConnectionResetError)
-    else:
-        expected_exceptions = (socket.error,)
-
     try:
         socket_ = socket.create_connection((host, port), 1)
         result = True
-    except expected_exceptions:
+    except _is_connectable_exceptions:
         result = False
     finally:
         if socket_: