Exercise From module 2, lesson 5. SecurityTube Python Scripting Experth
Create a WrokerThread and a Queue which can retrieve a list of public FTP sites from a file, login to these sites and list the root directory of each one and then exit.

At this moment I am using 10 threads for the 10 sites. Program is not terminating gracefully... It either dies or I have to manually kill it, also the output is all over the place. It is difficult to say which output corresponds to each ftp server