Python web bot design basis

I am making a python bot that does a certain accion on a webpage, I hace the básicamente code done and working but I am not sure how to combine it all together. I have made a class bot and my idea would be to make múltiple instantes of this class and run as many as posible at the same time.

The way I do it is I run them on a while 1 loop and each instance has to wait a fixed ammount of time to do his job. The problem with this is that I cant add nes instancia or remover old ones without restarting everything and if something goes wrong on only one it all stops.

I would like to know what I should do to have a modular system to fix this problems, just the basic idea. I would also like to have some simple gui, what is the simplest way to do this? Maybe some web bases gui?