The above bot fell into a bot trap. In order to do this it had to violate the rules in the robots.txt file. It is not clear why www.juniper.net is sending out a bot.
I have written to them and am waiting for a reply on what this thing is and why it was caught in a improper crawl.
In the mean time python-urllib/1.16 is added as a email harvestor since thats why I find about that useragent on other sites.