Memory leak when embedding and updating a matplotlib graph in a PyQt GUI

Question

I am trying to embed a matplotlib graph that updates every second into a PyQt GUI main window.

In my program I call an update function every second using thread

Answer 1

if you are creating a new figure for every time this is quite common.

matplotlib do not free the figures you create, unless you ask it, somethink like:

pylab.close() 

see How can I release memory after creating matplotlib figures