Twisted and Tkinter

[Chris]

There is no manual that's the problem. The sendLine method is part of
LineReceiver which is part of twisted. It's used to send a message over
the transport link. I can get it working by overriding twisted's
methods for example linereceived() or connectionmade(). But how do I
get it to send a message over the transport to the server by clicking a
tkinter button? There are no examples or documents on the internet that
can help, I've searched for hours.