webDriver API——第8部分Utilities

The Utils methods.

selenium.webdriver.common.utils.free_port()

Determines a free port using sockets.

selenium.webdriver.common.utils.is_connectable(port)

Tries to connect to the server at port to see if it is running.

Args:	port: The port to connect.

selenium.webdriver.common.utils.is_url_connectable(port)

Tries to connect to the HTTP server at /status path and specified port to see if it responds successfully.

Args:	port: The port to connect.

原文：http://www.cnblogs.com/hushaojun/p/4467501.html