RobotFileParser.set_url

>>> import urllib.robotparser
>>> rp = urllib.robotparser.RobotFileParser()
>>> rp.set_url("http://www.pythontest.net/robots.txt")
>>> rp.read()
>>> rrate = rp.request_rate("*")
>>> rrate.requests
1
>>> rrate.seconds
1
>>> rp.crawl_delay("*")
6
>>> rp.can_fetch("*", "http://www.pythontest.net/")
True
>>> rp.can_fetch("*", "http://www.pythontest.net/no-robots-here/")
False