Running multiple FTP servers on multiple ip addresses

[TheSil]

I am running several instances of FTP Servers from single script, each on different ip address (basically just multiple ip aliases on single loopback adapter). However when using the FTPHandler class, I have noticed that it has class variables such as an authorizer. This causes issues when different settings are required for different servers (accounts, banner, etc..).

Is there a way to run multiple FTP server instances, each with their own account settings (and banners, etc...)? Only thing that I've come up with is to run separate scripts, but I thought it should be possible from API provided, maybe I am just missing something.

[TheSil]

I was able to solve this by creating the FTPHandler classes dynamically (Python is truly marvelous...):

def create_ftp_handler():
    class FTPHandlerMulti(FTPHandler):
      pass
    return FTPHandlerMulti

Then instead of handler = FTPHandler one can just use handler = create_ftp_handler(). Perhaps it has nicer solution using metaclasses, but this works...