title: A dynamically updating graph for PyQt GUI
body: <p>I have developed a Qt GUI using Qt4 and PyQt. I am trying to implement a graph that will dynamically &quot;live update&quot; the graph to represent the rate at which the data is being transmitted in a (data/sec format). However, the problem lies within implementing a graph that can cleanly live update, not finding the speed. For the record, I want this to be built in as a widget within the GUI not a separate pop-up window.</p>